Joe, this topic comes up often...

Wood in general strongly resists homogenization...Taking timbers (or wood in general) and making it "square" (or trying to...I have seen endless "reinventing of wheels" and/or trying to force a natural material like wood to conform to an inert material like plastic, or metal...but even these expand and contract, as well as, "move." ...The effort (comparatively) to making wooden members "perfectly square" is not worth the work to achieve it...in most cases especially in timber framing...

Plane the wood for esthetics then employ layout methods that build to the "ideal." This is why "scribe rule" and "line rule" evolved millenia ago and are still in practice today as the dominant forms of layout in timber framing...from a globle perspective of the craft still practiced...