Depends on your reasons
I ordered a genoa for my Oday 23 last year. Previously I had a UK sail lent by a friend with a beneteau 23, and the boat was WOW!!! in 12 knots we were doing 7!! However it was a deck scrubber, mylar -- triradial. Hence when I ordered the roller furling sail I knew I would have to sacrifice the sail area a bit. I had a great talk with the guy at airforce sails, who designed the sail for mty purposes. I explained that I am primarily looking for a sail to fit the furler, and to give the boat a bit more speed than the stock sail. Tri-radial would be great I thought, since I had tried out the UK tri radial, and it was a huge success. Bill James (from Airforce sails) had a bunch of questions -- and based on the following, i decided to go with a 125%:I needed the furler primarily for the ability to reduce headsail quick and safe when single handing, from the cockpit. I wa splanning to do little sailing in the summer luls, and needed a goo dsail to serve spring and autumn. I am very pleased witht he design and construction, other than the spreaders and schrouds do chaffe a bit...Good luck. Reply to this post and include your e-mail if you need to contact me. Also if you're in the upper Chesapeake area, I can take you on a sail on my 23 -- to feel what a good tri radial mylar, well designed sail will do.