I HAD A HARKEN MKIII INSTALLED ON MY 76 HUNTER 30, BY MMR AT PORT ANNAPOLIS. MATCHING GENOA AT THE SAME TIME BY UK SAILS, ANNAPOLIS. TOTAL COST ABOUT $4K. WORKS FINE. FURLS TO STORM JIB SIZE IN THIRTY PLUS KNOTS BY HAND, IE. NO WINCHING REQUIRED.ANY QUESTIONS ABOUT THIS YOU CAN E-MAIL ME AT DON@CAPTDON1.COM. GOOD LUCK