I bought my xd .45 tactical before I had heard about the XDM, not knowing that they were going to come with the interchangeable backstraps...Now I wish that I had waited. So my question is: I have seen many articles about custom shops shaving some of the grip off in the back. Is that a wise choice? Im afraid that I will get to much taken off or it will change the grip angle? The only reason I want to do this is because I can just barely get a hold of the mag release...