I just bought a '94 H26 and am going through some driveway commissioning prior to placing it in the water. I noticed that the sheave pin that the halyards turn through at the base of the mast does not have any method to retain it in place. After trailering this boat home I noted that the pin had worked its way out about 1". I am thinking about machining a snap ring groove in the sheave pin and installing a snap ring to prevent this pin from working it's way out under sail or while trailering. Has anyone else noticed this issue? Has this lack of a retainer not been a problem for those of you that have this same setup? Thanks for the advice.