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if you are thinking of trying uspsa ide suggest starting in limited minor. shadow 2 is a great 9mm - and a great way to get started. fantastic gun for the $.
get in, learn the ropes, make your way to B class then re-evaluate. Until then the minor points penalty really wont affect you. I'm also a fan of the sp01 bull shadow and cts-lsp. I also see a ton of canik tp9sfx at matches with newish shooters up through B class.. one of the less $ ways to start.. I wouldnt recommend anything with a decocker.. pretty much screws up the trigger.
also production stinks for new shooters. WAY too much math to deal with while learning the basics. Seeing a new shooter make that mistake once is pretty common.. but by their second match they are loaded up to the max and shooting limited minor.
if you dont reload yet, its a hard time to start, primers are $$$ and scarce. and factory 40sw is $$$. I see plenty of bulk 9mm online for reasonable.