M&P Shield Alien Gear holster - Impossible drawing?

I purchased two AG IWB holsters not long ago, one for my M&P 9mm (full sized) and one for my M&P Shield 9mm. The shell for my full size is a smoother piece of Kydex with virtually no real exterior shape to it, as if the sheet of Kydex was laid over the fun and heated with a heat gun. The shell for my Shield is much more technical, like it came directly from a plastic mold."Okay. Get to the point."I have my holster for my full size set up perfectly. Drawing is firm, but doesn't tug my belt. I can jump, run, and other tacticool oper8r actions we secretly practice behind closed doors and my weapon doesn't move at all. With my Shield, I have it set up so drawing is fairly easy (but still firm enough to retain the weapon) when the holster is not being worn. However, the moment I put the holster on, drawing becomes virtually impossible without using my left hand to hold my pants down. If I add the larger spacers (currently using the medium spacers), the gun is too easy to draw. I tried tightening down the larger spacers, but the screws stated to protrude out the back of the holster.My assumption is that it has something to do with the shell, but I'm not entirely sure. I may e-mail AG if the /r/CCW community can't figure out a solution.Any help and input is appreciated! via /r/CCW http://ift.tt/2mxWGz1