When pulling up a rider(especially newbies)- give a little drag pull before the actual hard throttle. This will help lock the rider in the position.
Drive the boat in a straight line
Keep the speed constant at all time. If you dont have perfect pass, try and watch the RPMS versus the speed.
When turning, make a sharp turn, then get back on the striaght line course. Dont make a long continuos curve.
DONT POWER TURN.