What else could the USPSA classification system be like?
I agree with @YVK and @GJM that the current USPSA classification system mostly works. It's interesting that even though the classification game is quite different from the match game, classification more-or-less reflects match placement. There's a lot of overlap, but the ranks pretty much work. GMs at the top, next Ms, and so on.
I've usually been able to shoot my classification percentage at State, and Section matches, so that tells me it's working ok for me. When a national-class GM shows up at an Area match, that pushes everyone's % down but I don't get butthurt about it. I think it's awesome to be able to compete in the same matches with the top players in the sport. Should we have a Pro Class for them? Sure, why not?
I have come to like the classification game, and I like it even more now that only one re-shoot is allowed. I never liked the multiple re-shoot policy. It felt like a cheap way to move up. Now, it amounts to one run for match points, and one for classification. Two games in one.
I don't think match placement at any one match tells us that much. My goal is to continue to improve.
I do think USPSA classification is meaningful. It requires a lot of work to move up, and is as good or better a test of of shooting skill as any set short drills could be. The new classifiers are even better.
Sandbaggers and Grandbaggers? I don't really care about GBs, but sandbaggers piss me off because they take away from the enjoyment of the sport for B and A level shooters.