How did the holding power of your magnets work out? I am at the hatch stage with my Redfish King and want to use magents. Joe uses 12-15 per hatch, you only used 8. How strong did that turn out to be? What did you end up doing for a way to lift the hatch? I've been toying with a finger hole design (sealed on the inside), which would allow for a clean deck but a good grip on the hatch cover. But it would collect a small amount of water... If the notch on the side is enough, that would be better...