I am thinking about starting to shoot in some IDPA competitions this month and was needing some suggestions. I currently carry a Beretta PX4 Storm 40S&W, could I use this in competition? I have read over a few boards and havent heard of anyone using this model gun in any sort of competition and i was just wondering if I could use or if i should use it. I was hoping to be able to use what i have to get my feet wet before upgrading. Also what type belt/holster should i look to buy and how many mags will i need?