Building a Chesapeake 17LT and I've been thinking about the end pours. Has anyone used minicell instead of cardboard? I thought I could just leave it in after the pour. It would add a little buoyancy, not much I know, and only if the kayak was flooded. It would also add some padding for gear stowed in the kayak. The whole cardboard damn just sounds messy to me. Minicell would cost $$ as opposed to the "free" cardboard but when thinking of the total cost of the kayak it would be a small percentage.