Billy,
I really liked your idea of edging the deck with a different material, but the problem I was having was fitting the deck inside of the sides as per plans. Looking back now I would have moved the blocking inside the bulkheads up flush with the sides and attached the decking on top of the sides and trimmed to fit. Well, I went ahead and installed the deck inside of the sides and applied a heavy coat of thickened epoxy. I like to do this for settling and it gives me enough material to true the edge before I round it off. I know I end up sanding off a lot of extra material, but I don't have to go back and touch up low areas and sand again.

Here is a picture with the heavy coat on.
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Now a shot after sanding all put the starboard side flush. I will round over next.
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Last but not least, a shot of where my saw went crazy on me.

Pirate, I am leaning towards you suggestion of painting the over lap of the deck and sides to hid my seam. Now for the big question. Colors? Oh, yeah I let the plywood get too hot in that on area.

Always keep your sander moving.
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