Small-cap kerning a bit inconsistent

[alerque]

I was skimming a PDF today and noticed what at first I thought was an extra space that had bad it's way into the source inside a word. Unfortunately it turned out the source was clean, the problem was the kerning was inconsistent enough as to be misleading. Here's a sample of what I was seeing:

To my eye the last ’İ in the section heading is so far set off as to be almost separate. Obviously the L prior to it is largely to blame, but on inspection I noted what was going on earlier:

I'm not an expert, but it looks like the kerning pairs are not nearly as refined in the Small Caps as they are in the normal Serif series.

Besides my the L’ pair creating a huge gap (red) it seems like some places are squished (yellow) and others perhaps too open (blue). Or maybe those are fine and the relative weight of the R is throwing me off? I'm out of my depth now, all I know is it doesn't look right.

[rriemann]

For the record: The L' gap is subject of issue #323 .