On 12 Feb 2004 08:47:46 -0800, (BIG JOE) wrote:

A tree trunk grows under gravitational pressure running down the
grain. If that pressure is "relieved", there is no natural tendency
to warp. A horizontal tree branch grows with pressure running across
the grain, and thus the tendency to warp once that stress is relieved.

Joe

So I've heard.... so either a full piece to retain the stress, or a veneer to eliminate stress...