Anyone know of a source for these? Other than direct from MC, they are VERY proud of theirs. The bag itself it tapered from front to back with two fittings on top & one on bottom center.
bigwake.com. they make custom sacs. I just got one to replace my center ballast bag. 112 shipped to my door. 63x13 are the dimensions of the bag. three fittings on one end i added a 4th on the top of the bag in the center as a bleed off valve for air.