A friend of mine just got a 461VS. We set it up with his Yamaha 150 Vmax at 3.5" below pad. Yesterday was his first outing with it and he said when coming off plane, he was afraid the backwash was going to come over the top of his motor.Is this caused by the built-in setback of this model boat (he also has a 6" jackplate) or is the motor set too high or too low? Any ideas?