Look around. Check out all the other 21-foot direct drive wakeboard boats on the market. List the ones that give you standard multi-port power for smooth and powerful pulls and turn double-ups without bogging down. Whittle down the number to the boats with towers with standard clamping, swiveling board racks. Now cross those off your list without 700 pounds of KGB ballast. Factor in a ripple-making JL Audio sound system. Now look for the largest boat approved by the governing body of the sport. The final boat on your list is the one loaded to the nines. The X-9, that is.