J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Jib/Spin Halyard Sheave Box

For the past two years I've used 3/16-in. Technora, Vectran, and Spectra halyards with 5/16=in. dacron covers spliced on where they run through rope clutches and cleats or around winches. The sheave box only sees the 3/16-in. line when the halyard is under load and there seems to be no problem. Have not noticed any particular wear areas.