Just recieved a colt 1928 tripod, But I can't mount my 1917a1 into it. Back fits ok but the Front pin holes are a good half inch to low. The gun pintles and the front part of the gun hits the main tripod support yoke. There seems to be ears on the side of the tripod side plates which might be pivited upwards but that would make the mount half as strong and hold the gun sloppy as hell. Is there an adapter or something I need to get or make?