Hello Dale, Pickup some Davis "Air-Flow" telltales for the jib- they include a guide to the location of the snatch blocks along the aluminum toe rails for the best sail shape. We find the Davis "Shroud Telltales" excellent also. The really trick solution would track with cars, sheaves and cams on P&S, mounted inboard. Does any one use a barberhaul for tighter jib sheet angles? Ron and Cathryn Goodspeed 1974 M17 "hula pie" #025