J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Main Sail Slugs

Go with the black/grey ones that are longer, and use webbing instead of shackles.

The longer slides will provide for smoother hoists, and webbing will be lighter than shackles.

(I had short white ones that jammed in the track and had them replaced with the longer black/grey ones, that work like a charm.)