If the slide stop is locking up right, cut 3/32 on the bottom lug's back toward the chamber, this will allow the slide to go foward the correct amount.
I think after this topic on so many rules that no one can keep up with them, I see why there are other 3-gun matches that draw many more shooters than a uspsa match will. We need to make sure the 3 gun's are legal in class, wear what the hell we want, were we want & the best man win's.
OH!! for the old day's, the 90's, when all you had to do was make sure the 3 guns were legal, wear what the hell you wanted, where you wanted, & the best man win's. Life was simple & matches more fun.
What you need, a large field of view, about 80 ft. @ 100 yds., Bright glass, focus at 3 ft. or 300 yds, & light weight @ 10 oz.,& shock proff. The only scope that meet's all of the above is the simmon's shotgun scope. 1.5 x 5. No paralex.
The rule book is like the liberal's in washington, they think that they have to tell you how to do everything & that no one is capable of doing anything on their own. When you go to a pistol stage w/ the proper equipment, wear it where the hell you want, the same for the other gun's as well so long as the equipment is the same. Different battle's { stages} require wearing different equipment at different places so long is is legal for your class. We need a lot less rules & a lot more common sense.