Sean,
I vote against catch lights. They are a two dimensional solution to a three dimensional problem.
The best solution, and the one I always use, even on 54mm figures is to paint the eyes with gloss clear. This needs to be applied smoothly and should not "spill" over onto the eyelids. It is better to apply a couple of coats (allow for drying in between).
The advantage to using gloss is that any catch light that occurs will happen naturally. And, of course, it will match your light source because the light source will be causing it. This only rarely happens with painted catch lights.
Cheers!!
Mike