I just purchased my first 1911, a Colt Defender 45acp. I am new to 1911's and would really appreciate some helpful advise, input and information.1) I plan to carry it daily as well as use it to shoot IDPA, so I need it to function flawlessly. What changes, upgrades etc should I have done?2) It comes with one 7round mag. I however need 3 mags for IDPA, I would like to use 8 round mags from Wilson Combat with X-grips on bottom of mag to fill the void created by longer mag as well as give my pinky more purchase. What magazine would be safe to use and work perfectly? Has anyone else done this and be able to provide info and pics?3).I would like to buy a nice holster and mag carrier for daily use as well as for IDPA! I am not a kydex fan, leather only suggestions please. OWB, good looking, excellent retention etc...I am new to 1911's and would appreciate any and all help and suggestions!!!! Thanks so much fellas.