I have an original M1c Rifle and I just acquired an original scope mount for it. It fits great. My only problem is that the rear thumb screw lever over rotates before it gets tight by about 1/4 turn more than the front lever. Can it be adjusted to tighten in about the same position as the front lever? The front one points to the rear at 3 o'clock position when it is tight, and the rear lever over rotates to the 6 o'clock position before it is tight. Thanks for any help.