5'10", 270lbs. Huge beer belly.
I've been a fan of RM Holsters' PADDLE HOLSTER for awhile. I got one for my G42 (along with a mag-pouch) and--on the recommendation of the owner--decided to TRY their LOWRIDER (even though I have had and sold like 6-8 of the most popular IWB holsters over the last 10 years--most of them hybrids with leather and kydex). I didn't see HOW a kydex-only could feel very comfortable, nor how it would work when I sat down, etc., but I really liked the idea of carrying my G19, and OWB just prints too much for my liking (great at classes or on the range though). I go a few places where they have a "no gun" policy (like movie theaters).
I put the LOWRIDER on last night with a pair of pants and it felt great--my stipple job was a bit rough, so I had to hike up the exoficio boxers a bit, but I was shocked that it didn't bother me at all and kept the gun in place. The draw is definitely a bit different--the grip IS lower than I'm used to, but during 25-30 practice presentations, I never had a problem: gun came out with a good grip, extended mag-release never got pushed (and the gun wasn't even too difficult to get back in the holster). I sat, walked, and left it in for about 2 hours. The holster is EASY-ON-EASY-OFF since it just snaps over your belt.
I KNOW that it's always going to be personal preference--I've seen a few of these threads with all the usual recommendations. I've tried ALMOST ALL of them except the Silent Thunder Fusion (which was on my list) and a few others that are really pricey (over $80 with regular leather).
Overall, I'm impressed and definitely look forward to carrying the G19.
I'm sure the cute G42 will still get some time out of the safe for summer carry and quick trips to the store. I'll post some pics later.