The CDI allows reefing. CDI supplies specific information for your sailmaker to correctly build a sail that will hold a reasonable shape when partially furled. I would go with a 150 if the prevailing winds in your home waters are consistently light (you can't furl a 150 down to a storm jib). The first sail I had built was a 135 made from a heavy Dacron cloth. I frequently encounter wind conditions of 20 knots or more and didn't want to risk blowing out a 150 that I would have made out of a lighter fabric. Next year I may order a 150 and change headsails before leaving the dock as conditions warrant (it's not that difficult to change sails on the CDI).
Mark Dvorscak M17 #400 GRACE _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
