I can answer some of these. If the stage is āunlimited", you can shoot till you run out of ammo, which for the division you were shooting would be 31 rounds. Three mags, loaded 11, 10 and 10. And the stages are never over 18 rounds.
Some stages are ālimitedā (although none last week that I recall) where you canāt make up shots, and if you do, for every shot you take over the prescribed number of shots, you lose one of your best shots, and I believe are also accessed a procedural penalty.
As for number of magazines, some guys in certain divisions might require an extra Barney mag just to load the first round if their mags only hold, say, 10 when the first one needed to hold 11. Or in CDP where they're shooting 1911ās in 45 you need 9 to start, but the mag only holds 8. Same thing. Need a fourth barney mag.
As for non standard gear, cops and military are permitted to shoot their duty gear, so you will see some of that, and being just a local club match we try not to be Nazis about it, although if you are a top shooter at the match, and are running gear, ammo, etc, thatās not āIDPA legalā you will get heat for that.
Some particular stages we shot didnāt require concealment. There was at least one stage like that Saturday. Sometimes people forget to put their concealment garment back on if itās warm and they took it off. We try to notice and remind them to put it on. Again, if you forget, and we donāt take notice, and you arenāt likely to win the $100,000 cash prize that day, it gets ignored.