Yeah, I know there's a 219-page thread on AIWB already. Please bear with me, I just don't want to go through it to get a relatively simple answer.
I'm going to give AIWB carry a try. I've signed up for a class on how to draw so I don't half-ass it on my own. I've got three holsters that should work for this: a JMCK AIWB for my 3" M10, a Harry's Icon for my J frames, and a holster from a maker I've forgotten for my P99Cs.
My question is, is one of those gun/holster combinations better than the others to start this out? I'm leaning toward the JMCK/M10 combo but could be persuaded.