I'll be using my stock XDm9 4.5" which I believe puts me in ESP since Springfield listed it as single action, correct? I've been using WWB 9mm 124gr NATO and have several hundred more rounds so I was planning to use that. Based on the 125 power requirement though I'm thinking it might be better to use 115gr to reduce recoil. Any suggestions on ammo? I'd also like to use the XDm composite holster and mag holder to start with. Are those allowed in IDPA? This will be my first match and I've been reading allot online but any pointers you guys have for a noob would be great!