Cherubini designed h27 75-84
These are two very different boats!They share the same waterline (22 feet with one inch to the 25.5) so the speed potential is the same. But the 25.5 is lighter (less wetted surface) with a d/l of 209, and a SA/D of 16.6, so it should accelerate faster, and do better in light winds as Cliff says. With a capsize screen of 2.18, you would want to stay in coastal waters - it's clearly not designed for ocean cruising.At 2,500 more pounds, with two feet more overhang, and a 6 foot cabin, the h27 will be a more comfortable boat on a longer cruise (its "comfort factor" of 24 vs. 16 for the 25.5 bears this out.) Its capsize screen of 1.93 says that is also designed for heavier weather (and a number have made off shore cruises, although most of us are coastal cruisers.) She moves best heeling 15 degrees or less. With the cruising spinnaker offered by Doyle in this forum, she will do very well off the wind in all weather. With the sheets led back outside the stays, and a shoal keel, she doesn't point very well. But the deeper keel, and a track to fairlead the sheets closer to the centerline, this would be much improved. Without line drawings, it's hard to say anything about stiffness. I much prefer the h27 75-84's appearance - it looks more classey to me (simple personal preference!)At this point, they are both "classic plastic." Get a good survey, but I doubt there is much difference in maintainability. I do like the simple systems on the h27 (can't speak for the 25.5.) Both are well thought of in this forum.If it were me, I would crawl over both of them, get a trial sail on both (this is important, given your questions - I'll bet they feel quite different under sail) and go with the one I liked, including a good survey to avoid major issues.Enjoy the choice, and the sailing!DavidLady Lillie