Prather was once one of the most popular nitro powered hulls out there. At least in California where you and I are from. They were competitive boats...
I would not worry about that weight. The only places that a boat suffers from weight is takeoff and powering out of corners. And by that I mean when...
If your ride pads are convex at all it will run wet. They should be ?blueprinted?. They should be flat with a very slight dihedral(like 2-3degrees)....