In partial answer to RicB's question then, pre-compression of the entire panel, including its surfaces, suggests a significant challenge to practical methodology. That said, studies suggest improved mechanical properties with regard to hardness, static bending strength, and shear strength of compressed wood due to increasing compression set. This begs the question; in our panels do we require these "advantages"? Some may think so. As to RH swings, I would be guessing that the densification of spruce would move its properties closer to hardwood (or eastern and European white simply closer to Sitka), and that contraction and expansion due to RH would be just that -- relative. I would not guess any advantage here, but I would need to research it further. Do you really think the spurce would become more dense? Mass/volume should not change. If the volume is reduced by the restrictions noted above the mass would follow. The piece would hold less moisture and that is the only variable. Gene
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