Quigley suggestion

[Don McDowell]

A lot of other matches state flat out , no practice until fee's are paid.
At the nationals after they check your gun you get a sticker to put on it, that let's the RO's know the gun has been qualified.
I suppose they could do the same at the Q, give the shooter a sticker for his gun, and maybe get like a dollar (different colored sticker) for each additional gun that a person might want to fool with prior to the match.