Choose a sailmaker, and ask him
Or work with Doyle at this site.I strongly recommend finding a sailmaker you trust to work with. We bought an asymetric cruising spinnaker for our h27. Choose a sailmaker based on price _and_ willingness to come out, look at our boat, and carefully listen to our desires and needs. He did this before we committed to a purchase. Now, we have friendly advice on any issue about sails on our boat: which ones to consider, how to rig them (including winches, etc.) and how to sett and tune them.Give it a try. We can help from this site, but there is nothing like talking to an expert about your boat, and goals.DavidLady Lillie