I think the rules should state that you have to shoot what you've carried for the last 7 days. There's a ton of matches where you can shoot high caps and competition sized guns.
Why exclude folks? It doesn't slow the match up. It won't interfere with the other divisions. It will bring more revenue to the range. What exactly would be the down side to it? If I were to shoot my concealed Glock, or my S_I, I would still take up as much space an pay my same entry. Just because Jesse's gun said Glock on it, it was ok! IF there would have been 70 people at the match, I could see your logic. For the record, my "competition only" gun has been carried with hydra-shocks and or gold dots more times then with my reloads in a match. It gets a magazine of self defense rounds immediately after each match. So who exactly is the authority on what a carry gun consists of?
The statement about what you carried in the last 7 days, what if I don't have an OK CCW license? Now you just excluded even more people.
I like the idea of having classes and scoring that promote the use of your defense firearm, but have a class that will bring in more people too!?!?!?
Again, just my opinion.