Locally the IDPA and USPSA seem "even" in terms of matches and qualifiers. I presume the same shooters attend both matches. Did you purchase a membership to both or just one....and why? I shoot a G34; seems the IDPA is a bit more strict on holster and gun belt (based on mission statement) yet I need 5 mags in USPSA vs 3 for IDPA. I see no reason to be a member of both but I'm a newbie so what the heck do I know!