I have recently just purchased a 2003 Moomba Outback LS with a 310 HP Indmar Assualt engine. My boat does not have any ballast system in it, but was curious if one is needed to wakeboard. I have heard about "fat saks" and other bag systems and am curious of the use. I am new to this type of boat but have 3 very active kids that want to learn and excel with this activity. Any help would be greatly appreciated. Thanks