I'm getting the factory ballast system installed in my '02 Mobius LSV and I would like to add larger ballast bags. I measured the space along side the engine in the back and I get 18" high, 24" wide and 50" long. Im hoping to get as large a sac as possible to fit in there. Looking in the Overtons catalog at the choice of sizes of Fat Sac, they are either too big or dont completely fill the area. I guess what Im saying is that I want as much weight as I can put back there. Anybody else upgrade their bags in this year of Moomba?