I would have the pistol holster at on the side of hand that you shoot with and 5-6 mag pouches on the opposite side starting at the hip going around towards your back. The rules state where you can legally mount it and don't count on your BB instructor saying anything about placement. At my first match, as soon as the MD saw me, he pointed out my holster and mags were too far forward and if I started like that, it would be a DQ so I had to pull everything back. Look at the appendix. I think its appendix D2 to be more exact.