I purchased 4 b&s sets from the USA and had them sent over to me in the UK. This was about 3 months ago. I'll state straight away that I'm certain this dealer would not have sold the wood to me if he had even suspected that there was a risk. It was my first buy from him but won't be the last. He understands the import duty situation and was helpful . I didn't ask him, he just seems to be one of those thoughtful & helpful types. Anyway, I digress. One of the sets was quilted African Mahogany. Both the back pieces have warped, one quite badly....well, any warping is plenty bad as far as I am humbly concerned!!! Anyhoo, the room all the wood sets are stored in, is pretty constant as far as temp' & humidity go. The sides for this same set are flat as a pancake!?!? All other sets & tops are fine. I'd guess its warped as much as 0.5" over the length of the back. Doesn't look pretty at all. Can anything be done??? These pieces have bricks on the ends at present and I'm leaving them there till someone solves my dilema. Any ideas.....and I mean any.....please??? If nothing can be done and the back is kaput please tell me.....but gently. Ta.