Mikkeg205 ,Yes, you read that correctly a 190/197 with 310 hp and 1:1 trans is a dog. In my opinion they are underpowered for what should be a sporty boat. I had the same drivetrain in my 99 SportStar(95-97 ProStar Hull) and it was a rocket. The newer boats are heavier with a larger wetted surface creating more drag(improving tracking and wake though). I would only consider a 190/197 with PowerSlot and/or higher output motor.
Currently Boatless, searching for next boat SN 196...?
99 MasterCraft SportStar CB
98 Moomba Boomerang 310 HP 350 Carb
88 MC PowerSlot 240 HP 351 Carb Black on White