Thankyou for your help everyone it is much appreciated , Only one question snowgtr what type of glue is bondo , i have never heard of it before what is it close to. The timber im talking about i bought from ebay ,the seller said that it is for guitar building ,and we did have a very hot summer this year . When i bought the maple i had it stored in the house and now its in the work shop . So that i think has had alot to do with it .
Bondo is auto body filler.
How severly cupped is the wood? (say you put a straight edge across it, how far off would it be in inches or millimeters?)
Across each peice it has a cup of about 3mm aprox.