After reading all this, I see many valid points, many great ideas. Competition breeds innovation, you cannot regulate that. No matter what division is modified or created, someone will figure out a way to "game" it.
I have been a member of USPSA for more years than I can remember, I look at the equipment today compared to when I started, and I am amazed at the human inventive spirit. When I started shooting, a competition gun was pistol with adjustable sights. There were no dots or compensators, no hi cap mags. A Browning Hi-Power was a game changer with its high capacity of 9mm ammo.
The competitive spirit took over because someone figured out that with certain changes and additions to their pistol, they could overcome the lack of experience and ability and compete with the truly talented shooters.
So, no matter what you call a division and no matter what rules you make the shooter adhere to, someone will figure out how to game it. The ONLY way to keep it fair, is to do like NASCAR, create templates and inspectors to examine each pistol insuring that each competitor is equal in every way. The main drawback to this is the reason I no longer watch NASCAR, it's BORING!
I do agree that you can't have a division for every shooter that shows up, but the divisions that are available now, pretty much capture the majority of shooters.
Oh, and lay off the absurd, how does painting the inside of a magwell impact anything? Really, someone wins their division because their magwell was painted? Give me a break, you don't really believe that?