[PaulK]

If the sail is already torn in two places the cloth is probably too tired to be worth fixing.  The cloth you use for your repair will be so much stronger that the patch will cause the weaker cloth near it to tear even more. Getting a”new” used sail is probably a better solution. I needed covers to keep two trailered boats dry and the local North office suggested I drop by to see them.  They had about a dozen different mains and jibs that they were eager for me to take off their hands – sails that their owners didn’t want and which were just taking up space in their loft.  It looks like North, Doyle, and UK each have lofts near Crosshaven. It might be worth a trip up there to see. Certainly worth a call.