Do you dry the ribs, along with the board, prior to gluing ?

[John Delacour]

At 21:53 -0500 30/1/08, Greg Newell wrote:

>... I myself am in the opposite camp wherein I believe that there is 
>cellular destruction of the old wood and therefore due for 
>replacement. My reasons follow that of which we've heard for years 
>now on this list. This of course is assuming a CC board assembly. 
>Your thoughts?

Why should anyone be interested in what you or I or anybody else 
_believes_?  What scientific evidence can you point to to support 
this assumption?  In what way are the "cells destroyed" and by what 
agent?

To be sure, it is quite demonstrable that when a spruce board is 
compressed beyond a certain point across the grain it will yield or 
shear at the weakest point, hence compression marks.  Does this mean 
that the remainder of the board is also irreversably damaged?  I've 
never seen any evidence that it is.  And if the degree of compression 
to which the board is subjected is less than to cause it to shear, 
are you suggesting that the whole board is nevertheless damaged or 
inferior to a board made of new wood?  Where can I read the results 
of serious scientific research into the phenomena you believe in?


JD