While I do not have personal experience with this method, I read in a catamaran book that the best way to use a power boat to right a turtled beach cat was to tie the rope to the base of the mast, bring that rope directly aft over the trampoline (the rope goes on same side of the tramp you are now standing on). Then standing at the stern of the boat to help submerge it, the power boat pulls the cat so that the sterns goes down and the bows pull up and over. This method avoids having the tow rope touch your fragile hulls. It made a lot of sense to me.