Gentlemen, I'm new to this board and need an answer to a question. I was at the range today with two friends that shoot IDPA. They were showing me some drills. Looks very exciting and I'm going to get set up to start shooting in IDPA. My question is I have a HK USP.45f. It is DA/SA. Should I shoot my first round DA or SA? I've been shooting DA on the first but thought it may be easier the other way. Any suggestions or knowledge on the rules?