Ok, Sailmc...sounds simple enough.
But how do I check whether or not I''ve got the correct sheeve? Hook-up the chair and go for a ride to the top?
And, generally speaking, is the sheeve simple to change? Will I have to ride up on the jib halyard to allow me to remove the main halyard sheeve (I''m assuming that there''s a separate sheeve for both the main and the jib)? As you might be able to tell, I''ve never had to do this before, and while I probably take a ride in my chair perhaps once a year, I''ve never checked out how everything works at the top of the mast regarding the boat''s running rigging.