Today I bought what appears to be an unfired mod 12. The previous owner put some hidious lookin rubber grips on it, so as logic dictates when I got home I ripped them off and put on some K frame walnut takeoff's I had in the drawer. I then learned what probabley every one here but me knows. The grip frame profile is correct but the frame itself is probabley 1/8" thinner. I filled gaps with balsa wood and stained to match. S&W has no 12 grips. Ajax says they have only one pt # for mod 10 or 12 grips, so I know if I order I'll get wrong thing. Anybody ever faced this prob?