diff --git a/bindings/java/kiwi_java.cpp b/bindings/java/kiwi_java.cpp
index 5db1f758..9013d9fe 100644
--- a/bindings/java/kiwi_java.cpp
+++ b/bindings/java/kiwi_java.cpp
@@ -493,6 +493,16 @@ class JTypoTransformer : public kiwi::TypoTransformer, jni::JObject<JTypoTransfo
 	static constexpr std::string_view className = "kr/pe/bab2min/KiwiBuilder$TypoTransformer";
 
 	using kiwi::TypoTransformer::TypoTransformer;
+
+	JTypoTransformer copy() const
+	{
+		return *this;
+	}
+
+	void update(const JTypoTransformer& o)
+	{
+		TypoTransformer::update(o);
+	}
 };
 
 class JKiwiBuilder : public kiwi::KiwiBuilder, jni::JObject<JKiwiBuilder>
@@ -547,7 +557,11 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved)
 		jni::define<JTypoTransformer>()
 			.template ctor<>()
 			.template method<&JTypoTransformer::addTypo>("_addTypo")
-			.template method<&JTypoTransformer::setContinualTypoCost>("_setContinualTypoCost"),
+			.template method<&JTypoTransformer::setContinualTypoCost>("_setContinualTypoCost")
+			.template method<&JTypoTransformer::setLengtheningTypoCost>("_setLengtheningTypoCost")
+			.template method<&JTypoTransformer::copy>("copy")
+			.template method<&JTypoTransformer::update>("_update")
+			.template method<&JTypoTransformer::scaleCost>("_scaleCost"),
 
 		jni::define<JKiwiBuilder>()
 			.template ctor<std::string, size_t, kiwi::BuildOption, bool>()
diff --git a/bindings/java/kr/pe/bab2min/KiwiBuilder.java b/bindings/java/kr/pe/bab2min/KiwiBuilder.java
index a440c602..5cfdfd17 100644
--- a/bindings/java/kr/pe/bab2min/KiwiBuilder.java
+++ b/bindings/java/kr/pe/bab2min/KiwiBuilder.java
@@ -63,8 +63,12 @@ public boolean isAlive() {
 
 		@Override
 		public native void close() throws Exception;
+		public native TypoTransformer copy();
 		public native void _addTypo(String orig, String error, float cost, byte convVowel);
+		public native void _update(TypoTransformer src);
+		public native void _scaleCost(float scale);
 		public native void _setContinualTypoCost(float cost);
+		public native void _setLengtheningTypoCost(float cost);
 
 		public TypoTransformer addTypo(String orig, String error, float cost, byte convVowel) {
 			_addTypo(orig, error, cost, convVowel);
@@ -80,10 +84,29 @@ public TypoTransformer addTypo(String[] orig, String[] error, float cost, byte c
 			return this;
 		}
 
+		// Set continual typo cost (inplace)
 		public TypoTransformer setContinualTypoCost(float cost) {
 			_setContinualTypoCost(cost);
 			return this;
 		}
+
+		// Set lengthening typo cost (inplace)
+		public TypoTransformer setLengtheningTypoCost(float cost) {
+			_setLengtheningTypoCost(cost);
+			return this;
+		}
+
+		// Inplace update
+		public TypoTransformer update(TypoTransformer src) {
+			_update(src);
+			return this;
+		}
+
+		// Inplace scaling
+		public TypoTransformer scaleCost(float scale) {
+			_scaleCost(scale);
+			return this;
+		}
 	}
 
 	public KiwiBuilder(long _inst) {
@@ -241,106 +264,7 @@ public Kiwi build(TypoTransformer typos) {
 		.addTypo(new String[]{"ᆶ"}, new String[]{"ᆯᇂ"}, 1e-12f, CondVowel.none)
 		.addTypo(new String[]{"ᆹ"}, new String[]{"ᆸᆺ", "ᆸᆻ"}, 1e-12f, CondVowel.none);
 
-	final public static TypoTransformer basicTypoSetWithContinual = new TypoTransformer()
-		.addTypo(new String[]{"ㅐ", "ㅔ"}, new String[]{"ㅐ", "ㅔ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ㅐ", "ㅔ"}, new String[]{"ㅒ", "ㅖ"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"ㅒ", "ㅖ"}, new String[]{"ㅐ", "ㅔ"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"ㅒ", "ㅖ"}, new String[]{"ㅒ", "ㅖ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ㅚ", "ㅙ", "ㅞ"}, new String[]{"ㅚ", "ㅙ", "ㅞ", "ㅐ", "ㅔ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ㅝ"}, new String[]{"ㅗ", "ㅓ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ㅟ", "ㅢ"}, new String[]{"ㅣ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"위", "의"}, new String[]{"이"}, Float.POSITIVE_INFINITY, CondVowel.none)
-		.addTypo(new String[]{"위", "의"}, new String[]{"이"}, 1.f, CondVowel.any)
-		.addTypo(new String[]{"자", "쟈"}, new String[]{"자", "쟈"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"재", "쟤"}, new String[]{"재", "쟤"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"저", "져"}, new String[]{"저", "져"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"제", "졔"}, new String[]{"제", "졔"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"조", "죠", "줘"}, new String[]{"조", "죠", "줘"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"주", "쥬"}, new String[]{"주", "쥬"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"차", "챠"}, new String[]{"차", "챠"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"채", "챼"}, new String[]{"채", "챼"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"처", "쳐"}, new String[]{"처", "쳐"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"체", "쳬"}, new String[]{"체", "쳬"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"초", "쵸", "춰"}, new String[]{"초", "쵸", "춰"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"추", "츄"}, new String[]{"추", "츄"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"유", "류"}, new String[]{"유", "류"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"므", "무"}, new String[]{"므", "무"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"브", "부"}, new String[]{"브", "부"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"프", "푸"}, new String[]{"프", "푸"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"르", "루"}, new String[]{"르", "루"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"러", "뤄"}, new String[]{"러", "뤄"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆩ", "ᆪ"}, new String[]{"ᆨ", "ᆩ", "ᆪ"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"ᆬ", "ᆭ"}, new String[]{"ᆫ", "ᆬ", "ᆭ"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"ᆰ", "ᆱ", "ᆲ", "ᆳ", "ᆴ", "ᆵ", "ᆶ"}, new String[]{"ᆯ", "ᆰ", "ᆱ", "ᆲ", "ᆳ", "ᆴ", "ᆵ", "ᆶ"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"ᆺ", "ᆻ"}, new String[]{"ᆺ", "ᆻ"}, 1.f, CondVowel.none)
-
-		.addTypo(new String[]{"안"}, new String[]{"않"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"맞추", "맞히"}, new String[]{"맞추", "맞히"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"맞춰", "맞혀"}, new String[]{"맞춰", "맞혀"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"받치", "바치", "받히"}, new String[]{"받치", "바치", "받히"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"받쳐", "바쳐", "받혀"}, new String[]{"받쳐", "바쳐", "받혀"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"던", "든"}, new String[]{"던", "든"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"때", "데"}, new String[]{"때", "데"}, 1.5f, CondVowel.none)
-		.addTypo(new String[]{"빛", "빚"}, new String[]{"빛", "빚"}, 1.f, CondVowel.none)
-
-		.addTypo(new String[]{"ᆮ이", "지"}, new String[]{"ᆮ이", "지"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆮ여", "져"}, new String[]{"ᆮ여", "져"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᇀ이", "치"}, new String[]{"ᇀ이", "치"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᇀ여", "쳐"}, new String[]{"ᇀ여", "쳐"}, 1.f, CondVowel.none)
-		
-		.addTypo(new String[]{"ᄀ", "ᄁ"}, new String[]{"ᄀ", "ᄁ"}, 1.f, CondVowel.applosive)
-		.addTypo(new String[]{"ᄃ", "ᄄ"}, new String[]{"ᄃ", "ᄄ"}, 1.f, CondVowel.applosive)
-		.addTypo(new String[]{"ᄇ", "ᄈ"}, new String[]{"ᄇ", "ᄈ"}, 1.f, CondVowel.applosive)
-		.addTypo(new String[]{"ᄉ", "ᄊ"}, new String[]{"ᄉ", "ᄊ"}, 1.f, CondVowel.applosive)
-		.addTypo(new String[]{"ᄌ", "ᄍ"}, new String[]{"ᄌ", "ᄍ"}, 1.f, CondVowel.applosive)
-
-		.addTypo(new String[]{"ᇂᄒ", "ᆨᄒ", "ᇂᄀ"}, new String[]{"ᇂᄒ", "ᆨᄒ", "ᇂᄀ"}, 1.f, CondVowel.none)
-
-		.addTypo(new String[]{"ᆨᄂ", "ᆩᄂ", "ᆪᄂ", "ᆿᄂ", "ᆼᄂ"}, new String[]{"ᆨᄂ", "ᆩᄂ", "ᆪᄂ", "ᆿᄂ", "ᆼᄂ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆨᄆ", "ᆩᄆ", "ᆪᄆ", "ᆿᄆ", "ᆼᄆ"}, new String[]{"ᆨᄆ", "ᆩᄆ", "ᆪᄆ", "ᆿᄆ", "ᆼᄆ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆨᄅ", "ᆩᄅ", "ᆪᄅ", "ᆿᄅ", "ᆼᄅ", "ᆼᄂ",}, new String[]{"ᆨᄅ", "ᆩᄅ", "ᆪᄅ", "ᆿᄅ", "ᆼᄅ", "ᆼᄂ",}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆮᄂ", "ᆺᄂ", "ᆻᄂ", "ᆽᄂ", "ᆾᄂ", "ᇀᄂ", "ᆫᄂ"}, new String[]{"ᆮᄂ", "ᆺᄂ", "ᆻᄂ", "ᆽᄂ", "ᆾᄂ", "ᇀᄂ", "ᆫᄂ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆮᄆ", "ᆺᄆ", "ᆻᄆ", "ᆽᄆ", "ᆾᄆ", "ᇀᄆ", "ᆫᄆ"}, new String[]{"ᆮᄆ", "ᆺᄆ", "ᆻᄆ", "ᆽᄆ", "ᆾᄆ", "ᇀᄆ", "ᆫᄆ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆮᄅ", "ᆺᄅ", "ᆻᄅ", "ᆽᄅ", "ᆾᄅ", "ᇀᄅ", "ᆫᄅ", "ᆫᄂ",}, new String[]{"ᆮᄅ", "ᆺᄅ", "ᆻᄅ", "ᆽᄅ", "ᆾᄅ", "ᇀᄅ", "ᆫᄅ", "ᆫᄂ",}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆸᄂ", "ᆹᄂ", "ᇁᄂ", "ᆷᄂ"}, new String[]{"ᆸᄂ", "ᆹᄂ", "ᇁᄂ", "ᆷᄂ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆸᄆ", "ᆹᄆ", "ᇁᄆ", "ᆷᄆ"}, new String[]{"ᆸᄆ", "ᆹᄆ", "ᇁᄆ", "ᆷᄆ"}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆸᄅ", "ᆹᄅ", "ᇁᄅ", "ᆷᄅ", "ᆷᄂ",}, new String[]{"ᆸᄅ", "ᆹᄅ", "ᇁᄅ", "ᆷᄅ", "ᆷᄂ",}, 1.f, CondVowel.none)
-		.addTypo(new String[]{"ᆫᄅ", "ᆫᄂ", "ᆯᄅ", "ᆯᄂ"}, new String[]{"ᆫᄅ", "ᆫᄂ", "ᆯᄅ", "ᆯᄂ"}, 1.f, CondVowel.none)
-		
-		.addTypo(new String[]{"ᆨᄋ", "ᄀ"}, new String[]{"ᆨᄋ", "ᄀ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆩᄋ", "ᄁ"}, new String[]{"ᆩᄋ", "ᄁ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆫᄋ", "ᆫᄒ", "ᄂ"}, new String[]{"ᆫᄋ", "ᆫᄒ", "ᄂ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆬᄋ", "ᆫᄌ"}, new String[]{"ᆬᄋ", "ᆫᄌ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆭᄋ", "ᄂ"}, new String[]{"ᆭᄋ", "ᄂ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆮᄋ", "ᄃ"}, new String[]{"ᆮᄋ", "ᄃ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆯᄋ", "ᆯᄒ", "ᄅ"}, new String[]{"ᆯᄋ", "ᆯᄒ", "ᄅ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆰᄋ", "ᆯᄀ"}, new String[]{"ᆰᄋ", "ᆯᄀ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆰᄒ", "ᆯᄏ"}, new String[]{"ᆰᄒ", "ᆯᄏ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆷᄋ", "ᄆ"}, new String[]{"ᆷᄋ", "ᄆ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆸᄋ", "ᄇ"}, new String[]{"ᆸᄋ", "ᄇ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆺᄋ", "ᄉ"}, new String[]{"ᆺᄋ", "ᄉ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆻᄋ", "ᆺᄉ", "ᄊ"}, new String[]{"ᆻᄋ", "ᆺᄉ", "ᄊ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆽᄋ", "ᄌ"}, new String[]{"ᆽᄋ", "ᄌ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆾᄋ", "ᆾᄒ", "ᆽᄒ", "ᄎ"}, new String[]{"ᆾᄋ", "ᆾᄒ", "ᆽᄒ", "ᄎ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᆿᄋ", "ᆿᄒ", "ᆨᄒ", "ᄏ"}, new String[]{"ᆿᄋ", "ᆿᄒ", "ᆨᄒ", "ᄏ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᇀᄋ", "ᇀᄒ", "ᆮᄒ", "ᄐ"}, new String[]{"ᇀᄋ", "ᇀᄒ", "ᆮᄒ", "ᄐ"}, 1.f, CondVowel.vowel)
-		.addTypo(new String[]{"ᇁᄋ", "ᇁᄒ", "ᆸᄒ", "ᄑ"}, new String[]{"ᇁᄋ", "ᇁᄒ", "ᆸᄒ", "ᄑ"}, 1.f, CondVowel.vowel)
-
-		.addTypo(new String[]{"은", "는"}, new String[]{"은", "는"}, 2.f, CondVowel.none)
-		.addTypo(new String[]{"을", "를"}, new String[]{"을", "를"}, 2.f, CondVowel.none)
-
-		.addTypo(new String[]{"ㅣ워", "ㅣ어", "ㅕ"}, new String[]{"ㅣ워", "ㅣ어", "ㅕ"}, 1.5f, CondVowel.none)
-		.setContinualTypoCost(1.f)
-		.addTypo(new String[]{"ᆪ"}, new String[]{"ᆨᆺ", "ᆨᆻ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆬ"}, new String[]{"ᆫᆽ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆭ"}, new String[]{"ᆫᇂ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆰ"}, new String[]{"ᆯᆨ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆱ"}, new String[]{"ᆯᆷ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆲ"}, new String[]{"ᆯᆸ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆳ"}, new String[]{"ᆯᆺ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆴ"}, new String[]{"ᆯᇀ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆵ"}, new String[]{"ᆯᇁ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆶ"}, new String[]{"ᆯᇂ"}, 1e-12f, CondVowel.none)
-		.addTypo(new String[]{"ᆹ"}, new String[]{"ᆸᆺ", "ᆸᆻ"}, 1e-12f, CondVowel.none);
+	final public static TypoTransformer basicTypoSetWithContinual = basicTypoSet.copy().update(continualTypoSet);
 
+	final public static TypoTransformer lengtheningTypoSet = new TypoTransformer().setLengtheningTypoCost(0.5f);
 }
diff --git a/bindings/java/kr/pe/bab2min/KiwiTest.java b/bindings/java/kr/pe/bab2min/KiwiTest.java
index 326ff831..6ee7dfa0 100644
--- a/bindings/java/kr/pe/bab2min/KiwiTest.java
+++ b/bindings/java/kr/pe/bab2min/KiwiTest.java
@@ -4,6 +4,9 @@
 import java.util.concurrent.Future;
 
 import org.junit.Test;
+
+import kr.pe.bab2min.KiwiBuilder.TypoTransformer;
+
 import static org.junit.Assert.*;
 
 public class KiwiTest {
@@ -155,6 +158,30 @@ public void testContinualTypos() throws Exception {
 		assertEquals(tokens[3].form, "어");
 	}
 
+	@Test
+	public void testCustomTypos() throws Exception {
+		System.gc();
+		KiwiBuilder builder = new KiwiBuilder(modelPath);
+		TypoTransformer typoSet = KiwiBuilder.basicTypoSet.copy()
+									.update(KiwiBuilder.continualTypoSet)
+									.update(KiwiBuilder.lengtheningTypoSet);
+		Kiwi kiwi = builder.build(typoSet);
+		
+		Kiwi.Token[] tokens = kiwi.tokenize("프로그래미", Kiwi.Match.allWithNormalizing);
+		System.out.println(Arrays.deepToString(tokens));
+		assertEquals(tokens[0].form, "프로그램");
+		assertEquals(tokens[1].form, "이");
+
+		tokens = kiwi.tokenize("지인짜?", Kiwi.Match.allWithNormalizing);
+		System.out.println(Arrays.deepToString(tokens));
+		assertEquals(tokens[0].form, "진짜");
+		assertEquals(tokens[1].form, "?");
+
+		tokens = kiwi.tokenize("맗은 물", Kiwi.Match.allWithNormalizing);
+		System.out.println(Arrays.deepToString(tokens));
+		assertEquals(tokens[0].form, "맑");
+	}
+
 	@Test
 	public void testBlocklist() throws Exception {
 		System.gc();
diff --git a/include/kiwi/ArchUtils.h b/include/kiwi/ArchUtils.h
index 06191001..ba2d0e85 100644
--- a/include/kiwi/ArchUtils.h
+++ b/include/kiwi/ArchUtils.h
@@ -30,13 +30,13 @@ namespace kiwi
 	template<>
 	struct ArchInfo<ArchType::none>
 	{
-		static constexpr size_t alignment = 0;
+		static constexpr size_t alignment = 4;
 	};
 
 	template<>
 	struct ArchInfo<ArchType::balanced>
 	{
-		static constexpr size_t alignment = 0;
+		static constexpr size_t alignment = 4;
 	};
 
 	template<>