Re: Mast sheeves sticking
I think Paul has it on this one. We replaced ours 2 seasons ago and some of the sheaves were almost shredded along the upper "lip" allowing the halyard to jump. The other point of wear was along the pin that the sheave axis rotates. What was intended to be a centric circle in the center of the sheave had worn unevenly over time so that it was now more of an ellipse than a circle.