Thank you for the advice Gentlemen. I have barked 8 staves, sealed them with shellac, put them the right way up between beams, taken the least complicated looking pair and started to rough them out.
I went back to the wood to get a few more from where I had put them under a large tarp tent. These staves were drier than those I had put in the garage and the bark was already harder to get off, so I am glad to have got it off while I did.
In roughing one of these out, I made a silly mistake. I had clamped it in a vice to put some saw cuts in to help split pieces off with the axe. I wrapped the bow in cardboard for fear of damaging the back and did the vice up gently. I didn't tighten it enough and the stave twisted loose, dropped and banged into a screw that holds a rest for my grind wheel. The screw threads dented the back of the bow. The dents happen to be pretty much parallel with the grain. However, is the stave done for?
Thank you again.