So how loose is too loose? I just replaced the sights on my Sig TacOps 1911 with Trijicon HD sights, Novak cut. The original rear sight was really tight in the dovetail.......the trijicon rear sight is loose to the point it can be moved by hand with the set screw loosened up. When its tightened down the sight does not move......so I'm in a quandary as to what to do.