: Better you found out in the driveway than out on the water! I had similar
: problems with the cardboard dams when I was building a Coho, only I did
: the pours before joining the deck to the hull. That way I knew where the
: pours were to drill through the center. When I attached the deck, I filled
: the remaining pocket the traditional way (putting the boat up on end).

: If I found myself in your situation, I would probably see if I could find a
: piece of pipe (copper or PVC) which would fit inside what you already
: drilled, then add more epoxy to the pour. That way your don't have to
: worry about going through exactly the same path with the drill bit when
: you redrill the whole. I would also wrap some wax paper or plastic wrap
: around the pipe to be sure that you can pull it out once the pour has
: dried. Just a thought...

: I hope your next launch attempt is successful!

: skip
You could also consider leaving about 1/4" of copper pipe protruding on each side. Then after the epoxy has hardened, peen the excess over flush with the hull, should look pretty good. Just a thought.
Bob