I like the idea of positive flotation for my M17. After searching the web, I came across a variety of possible solutions (IE. self-inflating bags, spray insulation foams, styrofoam blocks). I think Bob Eeg suggested the best idea: 2 inflated oversized truck intertubes- one below the v-berth, another under the cockpit. It's an inexpensive, simple, and effective solution. Better yet, one has the option to deflate them providing for more storage. Refining this concept, would be to use Plastimo flexible bladder waterbags designed for the bow area (v-shaped) and under settees and quarter berthes (tube-shaped). Rather than storing water, just inflate them as need be. They are available Defender.com. Scott Simpson West of One 415. 328.2668 scott@westofone.com www.westofone.com