Hello El Tigre.. One other thing, I made sure where the mark is, top whould be the chamber, bottom would be the block. I took the cartridge from mine out after it hung and the mark is on the bottom, so I think its not on the chamber of mine. Lowering the cam may not fix that but it could if its the angle going into the chamber and the mark was on top. If that makes since? But all in all mine is smooth, sometimes I have to wiggle it a little or tilt it down. Loco