I don't really understand the obsession with the 150 power factor for rifles. It is not appreciably harder to shoot a 150 pf rifle than it is to shoot one with cowboy loads. If we're serious about power factor, it should be 170 or even 180 for the pistols and just leave the rifles alone. A 45 doesn't run well at 150 and everyone already knows there is no chrono and no chrono procedure as it is, so it would just invite rampant cheating.
150 pf for 9mm does not require 160 grain bullets either, there's factory 147 grain loads doing well beyond that already and I could easily boost my basic 147 lead loads that I'm shooting to achieve 1020 fps. They're already going ~950 as it is because even a 9mm doesn't run that great at 125 pf unless it has a pretty light slide.
I would completely agree that IF we are going to do an open category, it should allow any caliber 1911. I would take it a step further and it should allow any wood stock pump shotgun as well. Another thing I'd really like to see, which sadly I doubt I will ever see, is being allowed to use modern magazines with plastic basepads. I am not sure what we are achieving by banning the magazines virtually everyone else is using in their 1911s, but I would really like to lose the leather basepads and just use my normal magazine, even if they won't let me use my magwell.
Maybe they should make a "classic" or "heavy metal" division for the purists. I might even join them, I have nothing against what they're trying to achieve other than that I think they are focused on the wrong thing.
If we want to make Wild Bunch competitive with other shooting disciplines, the most meaningful changes that need to happen are that we need to have loaded starts, loaded movement, and stop banning common modern equipment like magazines. Those changes alone would make WBAS into a dynamic shooting sport that would completely sever it from those who want it to be cowboy with a 1911. Both loaded starts and loaded movement were permitted at Bordertown this year and it was an absolute blast. They called it "Historic 3 gun" rules. I call it "every other handgun sport on earth." But either way, those are the big changes that need to happen for this to become a dynamic shooting sport: loaded starts and loaded movement. Loading your gun is not a sport. Timing people loading their gun is not a competition; it's dangerous.