Here's the problem I have with USPSA, they have a lot of stupid rules, just like what you mentioned above about mag holsters. Who cares if someone runs a drop leg holster? But in USPSA it's not allowed unless your LE or Mil and the match director allows it. Real life, I see it often (at least in Arizona, Western Colorado, and Wyoming), Ranchers, Farmers, Hunters, etc. wear drop leg holsters.
Every single USPSA match I've been to, even a classifier, they allow you to walk through the course before you shoot. All the top guys are there with their finger pointed as as if they are doing a dry run, going through the motions of shooting the course, even the mag change aspect. I see the same thing happening in PRS/NRL matches where the shooters are climbing all over the stage prop, practicing and seeing how they're going to shoot the stage. It's stupid, and wastes a lot of time. Last year we had two stages in our NRL match that you weren't allowed to approach, until you were ready to shoot. I would like to add more of those in the future. And before anyone cries, you could still see all the targets from the staging areas.
I personally like the blind stages that team matches provide. All your strategy (or gaming) has to be done on the spot during time. And because, you don't have 30-people watching you shoot, it takes the endless complaining and drama away from the sport.