5'11' (shrinking to 5'10" as of late) and weigh 222 currently with a 40" waist and I got a pretty good gut IMHO. I use to carry a 1911 in a Sparks Summer special when I was 36" waist with no problemo. It feels kindy stuffy in there now. 5 years ago I went Kydex OWB and have never looked back! While the ultimate is the Mad Dog 'Unobtainium' Taylor Thunderbolt , on a Liger 1.5" belt , other slim Kydex holster are out there which are good. Blade tech and Comp Tac make real good ones.Avoid weird straps and support systems - simple is better, although you do need a good wide belt loop so the gun doesn't roll. I have found a lower than 'high rise' holster to draw smoother as I got older and fatter. A belt level holster works well. Another thing is I now completely avoid a holster with any thing other than an open top design for CCW. The snaps add another motion and are totally useless when kydex 'pops' the gun into position AND very hard to reholster.
I have a whole chest of drawers full of leather holsters going back to the one Chick Gaylord made for me close to half a century ago, and some real antiques too and many up to present. But give me a top notch Kydex holster on a Liger Belt unless I'm waxing nostalgic. My skinny children like IWB and Hi rise Pancakes , however, but they still ain't as fast and deadly as dad, even the PoPo ones.