> I am thinking a bungee idea, but what I really want is a pulley system
> that would go up to the cockpit through the bulkheads. The bungee idea
> would be easy but I am afraid of leakage, and it would be hard to open
> with the tention from the bungee. The pulley idea would be able to pull
> the hatch very tight and would also be easy to open since you can release
> the tention. I am still open to ideas, have any?

My Cape Charles was retrofitted to bungee hold downs. So far I am pretty happy with them. It is not hard to open the hatch, I just reach in and unhook one side. I have not yet tested for water tightness but it is better than the nylon web hold downs that were there. The only problem I have had is that at 65 mph the wind catches the hatch and lifts it up. It cracked a hatch cover. I was lucky not to lose it... I like the watertight bulkhead and am hesitant to put holes in it.