Tuning 25.5
I tune our 25.5 by hand. I make sure everything stays vertical with about one to one and a half mast widths of aft rake. Then I gradually tighten the rigging until the shrouds are about the same tension as the Catalina 27 next to us (Tom Monroe on this forum). Then I sail the boat. When I return, I check the rigging and vertilicality. If the lee shrouds were loose while sailing, I tighten everything, but try to maintain the same rake.This results in a very light tiller touch (almost no tiller pressure) when sailing a close reach in less than 8 knots of wind flying the 150 genoa and main. When the wind picks up, so does the weather helm, but it keeps pretty managable without a lot of heavy tiller force. YMMV.I'm probably making a mistake by not measuring shroud tension, but we're on an inland lake, we don't sail in heavy conditions and drop the sails / head in quickly under power if a storm starts to kick up.