On this boat I figured I'd reinforce those areas before it ever hit the water. I started by laminating ash strips to the ends of the redwood. Ash is a harder wood. Then I added an extra layer of fiberglass tape.
Above and below - I've wetted out the fiberglass tape, at least until
it overlaps the masking tape.
Below - The epoxy has set, and I'm trimming off the excess. Later
I'll sand the edges smooth and apply a couple more coats of epoxy.
I think the results were good. You can still see the fiberglass tape,
but there aren't the raised edges I would have gotten if I had left the
edges of the fiberglass tape intact and coated it with epoxy. The
tape is thicker than the regular 6 oz. cloth I use, so I think this method
gives me more protection than if I had just used a strip cut from the 6
oz. cloth.