Join the club. Roy's repair seems to be working pretty well. I did something similar with mine, but don't think I caught it soon enough. It kept it alive for a bit longer but started to deteriorate further and eventually leaking water really damaged the wood in the upper part of the blade. If you're willing to pay somebody else to do it, I found a guy at this site: Home
that apparently does a good job with wood paddle repairs. I contacted him and got an opinion/estimate but never followed through with it as I could not decide whether or not the extent of my damage could be repaired such that it would be worth the cost.
I've probably lost my notes at this point, but I was also curious about the coating AT uses on their paddles because it seems to be quite effective against blade wear. I think it was some material that people use on the decks of sailboats. Anybody know anything about that?
Post a followup if you manage a successful repair.