I own a 1992 Sunsport. I also used to ride behind a closed bow 1996 Boss 200. The MB would take water over the bow all the time and riding in the chop was downright painful. I remember lifting my ass off the seat so I didn't break my spine...
I am VERY happy with my sunsport. As stated, it puts out a nice wakeboard wake. I have a flyhigh tube sac under the rear seat (just cut out the dividers). I combine that with another tube sac on the rear floor, and a 750 fat sac next to the doghouse and about a 150 pound sack that fills the front cooler behind the playpen. So, for surfing I have 1200 to 1400 pounds of ballast.
This is with 2 people in the boat and the 1200 to 1400 pounds of ballast.
Here is the wakeboarding wake with only the under seat tube sac 2/3 full.
The new dimensions tower is hands down the best way to go for the tower on the supra. looks very OEM.
I am really happy with the playpen bow. it's my wife's "happy place".
Yes, in 1992 they went all composite and you can verify that with the rounded windshield. The supra handles the chop well and it has a TON of freeboard so it's great as mentioned above. There is also a great user community that has been a ton of help:
If you have any other questions about the 92 Supra, fire away. I'm damn happy with mine and for the money, it'd be hard to find a better boat for me.