I see some other soon-to-be first time builders have the same dillema I do trying to decide whether to go with bead & cove or rolling bevel.

While the thought of routing a lot of strips is daunting, I won't be actually building until late April at the earliest, so I have a lot of time to prepare the strips.

What really intimidates me about the rolling bevel is:
If you don't get a perfectly flush fit between the strips, I assume you would want any gap to be on the inside of the kayak, not the outside. In other words, the outside of the strips would be flush but there might be small gaps on the inside between the strips. The area between the outer, flush edges and the inner edges which are seperated by a small gap would be a triangular hollow between the strips.

Now, assuming you didn't need to plane or sand after fitting the strips, this would still look fine, but since you really will need to plane or sand after fitting the strips, won't you immediately open a gap on the outside of the strips once you take a plane to that flush, outer edge?