Historic Greenland kayaks do not have a lip. The tuilik was tied to the coaming so tightly that it would seal out the water. That's one of the reasons why rolling was so important- really hard to get out again.

I would at least put a riser on because it would give you the option of using a spray deck of some kind without as great a fear of entrapment. IMO- kayaking is WAY more fun when water from your paddle isn't running all over your legs every time you dip your paddle in the water.

I really like a composite coaming of some kind- but I didn't like all of the steps of "Vaclav's method." On mine I made a sacrificial mold of minicell temporarily glued to the hull with repositionable spray adhesive, then I covered it with aluminum foil I had coated with mold release wax. I used biaxial CF tape, when I was done laying it up I pulled the foam away, leaving the coaming.

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