The 93 S&S and 92 190 should have the same hull. The WSM guys may have weighted the nose or something to get it to ride a little more bow down. But it shouldn't need much, if anything, to have a wonderful wake.
Here is a prop comparison
I did on my old 93 205 several years ago. My impression was that the CNC milled prop I replaced my factory 13x13 with improved the wake a bit.
As for chine spray, in no wind, you should be able to get into 35 off without too much trouble. Short of modifying the hull, there's not much you can do about that.
Previous: 1993 Prostar 205
Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG.
Tyler Ski Club
To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.