For some guys, they hit middle age and buy a sports car. For me, there was a fire lit inside the first year I began shooting (later than most hardcore gun guys... I was 15) and at the sportsman's club we joined, all the local cops shot PPC on Saturday mornings on the indoor basement range. I was allowed to watch 'em, but only sworn LE were allowed to shoot.
Most all of those guys were running custom guns. This was 1988 to 1990 and this was PPC in those days. Go back to the 1960's and probably nearly all of the 70's when PPC was still in it's original form and yes, you would have seen duty guns and not a half ton of custom gear and leather and gadgets all dragged around in a Pachmayr shooting box with stacks of speed loader trays and Comp-III's.
PPC got "gamed" the same way IPSC got gamed, USPSA, you name it. They start out one way and after a stretch it becomes an arms race. It's the natural evolution of shooting competition.
I've got six custom PPC guns now and I thoroughly enjoy them. I'm usually feeding them BBWC, sometimes they get HBWC, but always lead bullet, always .38 Special only and usually 800fps or under. And most of mine demand the Federal 100 primer because the DA trigger stroke is genuinely that smooth & light.
My favorite is a Travis Strahan build on a 1977 S&W Model 64, but there were dozens of excellent custom PPC builders. I might argue that Ron Power/Power Custom and Bill Davis/Davis Custom would vie at the very top for most known, respected and perhaps also by sales volume, but there's a long list of builders and shops that made top-notch custom PPC guns.
Other names to look for -- and when I say "other", I do NOT mean "lesser." Bob Day, Ken Eversull, Royce Weddle, Cheshire & Perez, Austin Behlert, Travis Strahan, Lou Ciamillo/Maryland Gun Works, Lin Alexiou/Trapper Gun, Ikey Starks/Sports West, Schneider Custom, Jerry Moran, MOJO Custom, J Post Custom and plenty of others.
The first PPC gun that I found and brought home was a gem that I stumbled across at the Gun Library at Cabela's and this was ten years ago. This revolver is phenomenal... and I have no idea who built it and I doubt I ever will. Slab side barrel on a 1956 pre-Model 10, and it's at the same level as my Strahans and Davis guns.