Which h27?
I don't know about the new model, but on the 75-84 model designed by John Cherubini, the standard approach is to run the sheets outside the shrouds and lifelines to a fairlead block on the toerail.If I furl our 110 to about a 100, I can run the jib inside the shrouds (I use a barber-hauler, a block on a line run to the other side of the boat, to do this.) This allows sheeting to the minimum angle. The sail flies fine, and we can point much closer to the wind. However, in any wind, we are making so much leeway (about 10 degrees) that it is just not worth the trouble. So we crack off, run the sheets outside the shrouds, enjoy the boatspeed, and stay out of round the buoy races.If you had a full keel, and wanted to race to windward, or make that landfall without tacking while cruising, you could install tracks on the deck alongside or on top of the cabin roof, and sail a 100 really close hauled.If you have a new h27, congratulations, and I'm sorry for wasting your time!DavidLady Lillie