Have about 4 hours on the boat / motor and had an opportunity to open it up. 2019 S21SF, 150hp Yamaha, SPS, SS Prop Top speed was 38mph 450 pounds of passengers, 2 batteries, trolling motor, 3/4+ fuel, slight chop on the lake, 6000 RPM. Sound about right? I was hoping to get 40. Maybe after the break-in is done?