I bought a Gillette slim cheap at an antique store and it was sticking a little thought it would fix it once I got it cleaned up. Got it super clean but it still sticks a little. Doors seem to open and close properly and 1/2 turn tighten works well. However just as doors come together on center bar gets hard to turn, you turn it harder it will click and then operate normally doors do jump a little before closing. It almost seems like a clearance issue as they come together with center bar once it overcomes this rubbing works great. Adjustments all work perfect. Anyone have any suggestions on how to fix it??