Trying not to get repetitious here with the whole new guy wanting to know what you need in IDPA. I have a HK USP Compact in .45 with express sights, and a stock Glock 20. I am looking at purchasing a HK USP .45 full size, a Kimber Tactical Custom II, or a STI Trojan 5.0 for competition in the CDP division. Do any of you know if these pistols are even legal for competition in the CDP or if I'd just be buying a nice gun. Will the HK Compact be able to hang with the 1911's or is a 5" barrel better? Through everybody's posts here I have figured out all of the other equipment, but am stuck on the pistol issue. Any help would be great. Thanks in advance!