I'll generally agree with Norteno and others on the PS37 seakindliness and also sailed ours in the Regata al Sol from Pensacola to New Orleans. With more V- shaped lines
forward transitioning to the larger keel, she tracks better and doesn't slam as hard as a Hunter or similar design. Also, with relatively greater flare and stem rake, she sheds water more easily. Moving aft, the lines
at the stern are not flat like most production cruisers, which sacrifices some speed, and in conjunction with the double end, makes it very quiet at anchor
, eliminating the infuriating slap against the flat sections under the reverse transom.
I would say, though, not to assume that a PS37 is relatively the same size. The Hunter displaces about 9700 lb, and the PS37 is close to 18,000 lb. So it's almost twice the boat!! Don't let that dissuade you though. It is a fantastic, well constructed vessel.
Also, for cruising in the Gulf, I think that there's something that most of us in small craft are going to have to live with, and as a disclaimer will say that while I had to learn all this in oceanography and ports and harbors classes in college, I'm not an expert. I know enough to be dangerous. The "tuning", i.e. shape of the gulf is such that, combined with the way the fronts move through, the fetch isn't enough for waves to decay into a proper ocean swell. They often just hang in this 4-8 ft wave height with a wavelength that tends to excite anything in the small craft range, and larger if beam to the seas. I honestly think you have to plane (power) or be greater than 75 ft or so to avoid it. The wave climate statistics are out there, but I haven't bothered to look at them.
On the way back from Isla Mujeres (Cancun), we had 22-25kt out on reach with a big southerly Caribbean ground swell of about 8-10 ft running with us. We stayed in the high 7's at a minimum for well over 30 hours, much in the 8's, and was one of the best sails I've ever had in my life. Controllable and comfortable the whole time.