Dunns Lake Illinois...who is this

Hey everyone, im wondering if anyone on here knew the people who are always out riding on Dunns Lake in Fox Lake Illinois in the older red Mastercraft Prostar with the extended pylon, and i am bassically asking this because the boat is putting out one mosterous wake and i was wondering how it was weighted because in my dads old tristar we werent putting out half the size of the wake. ill try to snap a pic next time im out there, as they seem to be out everytime im there.
Thanks-shaun