I would never sharpen it. It goes back in the kitchen when I'm done with it Someone could cut themselves while eating cereal.
![Wink ;)](http://www.primitivearcher.com/smf/Smileys/default/wink.gif)
Seriously, when it is dull it can be used aggressively without potentially taking any wood off as well. It plows the bark off and simultaneously bones the back which I consider a good thing. It is not a scraping of the cambium that I am going for but basically like using your fingernail to remove tape.
Reduced the stave a bit more and trapped it to the back today. Ready to put the bends in over the next day or so.
More pics coming even though I sense this isn't very riveting stuff.
![Undecided :-\](http://www.primitivearcher.com/smf/Smileys/default/undecided.gif)