I really dislike my DeSantis iwb leather for my G19. It is a nice holster and is comfortable, but being a bigger guy who needs to wrench my belt to keep the pants up, it doesn't draw easily. If my waist was concave rather than convex, it would probably be nice.
Yes, I'm in the same situation as you.... Right now I'm looking for OWB for steel challenge, not to carry, so I'm hoping the belt wrenching won't make as much of a difference.
Now if I get my W&C, then I'll have to deal with it. But I'm eying up Glock 43X so hopefully the smaller size will help, at least a little.