do all gillette slim razors close with a half turn?
i have two gillette slim razors one has a date code of I1 which is in decent shape as well as a great looking slim of date code M1. the slim dated M1 does not seem to close like my other one in that it tightens on the blade but does not allow for a locking "half turn". it tightens up the blade then seems to freeze when trying to lock the blade in place. is this normal? and if not is there an easy fix. my M1 slim is visually in much better shape.