Which holster do you prefer for IDPA competition and why? What are some of your considerations for which holster to use? Likely, it's whatever CC holster you're most comfortable using, eh. What considerations or changes do you make for competition (eg, 2 o'clock versus 4 o'clock, IWB vs OWB vs shoulder), if any? I'm interested in IDPA, and have been scouring this forum and the IDPA site for all the great info. My only Glock is the 21SF so I imagine it'll be a bit husky for CC. As a n00b, I'm leaning toward the Glock Sport Combat for its simplicity and basic design. Any thoughts on this -- for or against? Additionally, what are your preferred magazine pouches? Do you wear a heavier, wider belt?