I picked up a nice pair of stag grips with Colt emblems today at a show and when I brought them home and tryed them on my 1st and 2nd generation SA's I noticed that the grips lined up nice except at the top of the grip frame they were squared off with a squared recess going back 1/2 inch from where the front part meets the back of the frame. I hope that I discribed that right. Are the 3rd generation Colt Sa's any different from the 1st and 2nd or is this pair of grips for a different model all together? There is enough "meat" on the grips to fit them to one of mine but obviously they were designed for a different model. Any ideas?