I have a 03 22SSV and found that the stock ballast is adequate. I fill the rear starboard 175# sac completely and the front locker 800# sac completely--nothing port side. I found that the starboard (right)side is a much cleaner wake and I ride goofy so it is perfect. Throw your extra bodies on the side you surf too--it doesn't hurt. Pic shows above ballast setupp with three people in the boat--driver, passenger on starboard sundeck and passenger on rear center of seatPort side requires more weight to make it clean. I am upgrading my rear sacs this year to larger ones