Adding an IBS looks like a ton of work (i.e. pumps, hoses, more holes in the boat, etc.) and the guys at wakemakers recommended that I upgrade the center sack first to this monster:

Size: 88"L x 19"W x 19"H
Weight: 1180lbs.
Ports: 2 fill/vent - 1 drain
Model #: W842

I don't have access to the boat right now to check, but that seems very big for the size of my ski locker. Does anyone have this in their OBV and does it actually fit? And can you actually fill it to capacity?