Well, I have my XCR cleaned and all set up, except for the new hand grip. I know, I need to show pictures, but putting that aside, how do I remove the original hand grip and install a new one (Hogue)? What kind of screw is that? Also, I seem to remember that either on this forum or Sigforum, someone mentioned that changing grips could mess up the trigger, or something like that. Is that true, and if so, how do you avoid it? I appreciate the help.