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Mike, yes.

KnotSlip, got it! I AM on the right track. Except I think the terms got turned around again. Isn't bending ability "strength" and impact resistance "toughness"?

Where did I put that Advil! <img src="/ubbthreads/images/graemlins/crazy.gif" alt="" />

bending is toughness.

JYD #7 Preserve the Yard.