J/30 Class Association Forums J/30 Forum One Design Class Rules Rules Implication for Replacement Rig Rite Jib Box Assembly

This then is an up date to Charlie's post above?

"After reviewing the availablity of the orginal sheeve box and alternates As class measurer I recommend that the Rig rite sheeve box be approved for use only in replacement masts. Due to location differences and hole size it can not be retro fitted to old masts."