RE: Balsa Weights
Think about it folks-it would be not just odd-but downright suspicious if a sheet of wood stripped DID give strips all the same density. Remember that sheet came from a block, and was cut either tangentially, radially or at an angle through the annual growth rings. For the density to be identical through the sheet, the growth rate would have to be constant regardless of the year, the time of year,the actual weather and season, and regardless of the orientation of the tree. That's not just a big ask-that's a biological impossibility!
'ffkiwi' (wearing his scientist's hat!)