I had a `92 Prostar 190. It was very reliable, had awesome ski wakes (that hull is considered one of the best slalom wakes ever), and drove/handled GREAT, but it's not much of a wakeboarding rig.
I ran about 1800 lbs ballast, mostly because I was out of room, but it also got pretty scary to drive with any more. It still took medium sized rollers over the bow pretty frequently, with more ballast it'd take medium rollers over the back too. There was literally no floor space or bow storage left with all the sacks. Going out with a crew of more than 4 was almost impossible.