I don't know what the exact degree of heel is max for a Oday 25 however I do know that the Oday has a capsize ratio of 1.9 which is better than Cal,Cat,Erickson 25's. Im told anything below 2.0 is excellent. I think it has to do with the fact Oday is about 600 lbs. heaver and most of that is ballast. I have had decks awash many times and always started rounding up when I pointed to high, well before I exceeded any max heel.(Control loss). In 1973 I got knocked down in a Cat 27(Sails in water) coming out of Newport,Ca by a Santana gust off the high desert at 50+, full sail and no warning. Let the sheets go and it was over in less than 2 min. The Odays a great boat very forgiving.
Enjoy