yea, I know the front doesn't fill all the way. I remember that thread from last year, didn't care to search it though nor did I even remember to search until you mentioned it
I know the 750's don't fill entirely either. I was just throwing out those numbers and while I know it's not entirely truthful, is all I got. All I know is the wake is huge... My boat is actually Josh Twelker's boat he had for a few months and I didn't bother messing around much with the ballast since I know he worked with enough to figure the best configuration.