I looked at using the new Hobie "Twist n Seal" hatches as a replacement for the standard screw-in after losing a couple of lids overboard.
Had to sail back from Horn Island with Duct Tape covering the 6 inch hole when my crew managed to spin a cover into the drink on the way out to the Island.
These hinge open, but that means they do have a small raised hinge, not total flush like the others. Also, the reason I didn't use them is they have a slightly bigger "footprint" so they overlap the flattened area on the Hobie 18 meant for the ports, so the edges would be unsupported unless you built up a base.
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Damon Linkous
1992 Hobie 18
Memphis, TN
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