1990 Hull vs 1989 Hull Sport Nautique

I disagree with some of what footinforever told you. I owned an 89 sport nautique. I also owned a Mastercraft Prostar 190 and I know a bit about ski boats. The 89 sport was a terrific boat. It was the first relatively deeper v that correct craft made. It was very stable in a bit rougher water and rode well on the lake. It is a high quality boat in all respects. The only downside to the boat was that the wake was not a competition ski wake. It was a bit tall and sharp, but improved at 22 off. If you are a casual skier and don't mind a bit bigger and sharper wake than a competition boat, you will do fine with the sport. I hope that this helps.

Nope, different hull. I believe the Sport hull has a deeper V. No personal experience here, but I would guess that the Sport will ride nicely, but the slalom wake will suffer.