This is for a standard rider with 5 in boat and 1 person surfing.
Midship ballast 75 - 100% full.
2 people in observers seat
2 people in back on, also on riders side
and a have a 560lb HD fat sac filled about 60 – 70 % full situated halfway in walkway and halfway in rear seating floor area.
And speed is 9.5 – 10 mph according to PP
We also make a gradual left turn if needed
If riding goofy, just move the fat sac all the way into the rear seating area, so it is not in the walkway, and all passenger to the other side.