Just got a ride in Dude! Sweet!'s Pantera 28 single this past weekend in the So. Cal chop. Let me tell you that is one solid boat. The only time you get any slapping out of it, is if it hits rolled to one side or another pretty far. Otherwise, it knifes through.
I'd love to see one of the magazines do a rough water shootout, where they take several boats of approximately the same length out in super rough water, and see which one rides the best, and handles the best.