You'll get more replies on CenturionCrew, but the boat likes weight in the middle. Sometimes run stock ballast and a 500lb between the driver and pass seat. or my buddy just upgraded to FH 750's in the rear lockers and puts that 500lb between the driver again. The 750's are not full so about 500lbs. We never had to run bow weight.
You'll need to upgrade your prop for sure if you have the 350mag engine. surfing wave is very good and meaty. 750 in the corner, 500 on the seat, 10.5mph