IF A PICKUP OF ANY LENGTH OR SHAPE IS INSTALLED ON THE "WRONG" SIDE OF THE ANTI-CAVITATION PLATE, YOUR CHANCES OF CAVITATION PROBLEMS ARE DRASTICALLY INCREASED. IF YOUR PROP TURNS CLOCKWISE VIEWING IT FROM BEHIND, THE PICKUP MUST BE INSTALLED ON THE LEFT, OR PORT, SIDE OF THE DRIVE. IT MAY WORK ON THE OTHER SIDE BUT NOT TO IT'S POTENTIAL WITHOUT RUNNING THE RISK OF PLANING, STEERING OR EFFICIENCY PROBLEMS. THE SECOND REASON IS LESS DRAG. MORE PICKUPS MEAN MORE DRAG AND LESS EFFICIENCY. IT IS POSSIBLE TO ACTUALLY SCRUB SOME TOP END SPEED BY HAVING MORE THAN ONE PICKUP, MAINLY BECAUSE THE SECOND PICKUP IS ON THE "WRONG SIDE" OF THE DRIVE! THE THIRD REASON IS THAT THE WATER FLOW AT THE HYDRO COOL ll IS SO TIGHTLY CONTROLLED THAT WE CAN ACHIEVE MAJOR DROPS IN TEMPERATURE WITH A MINIMAL AMOUNT OF WATER.