Well we have a really nice bag sealer at work, and the other day when we got a package I saw how they use bags of air as padding. No sence moving unnecessary weight. Ship air when you can. Well I think that applies to us too. This is a prototype. I think I'm going to put some peanuts in it just in case it gets punctured but these bags are pretty tough. I figure I can get at least 3x the volume up in the bow with this and with less weight. I'm going to put some seperate bags in the stern and removable ones in front of the battery trays as well as something to make the canopy float. No more sinking for me.