"One problem is that for an airplane, there are bunches of point loads, like
the spar, engine, and landing gear. There are also some wicked bending
moments involved. If you canoe breaks, you go swimming. If you airplane
breaks, you......"

No question the point loads are a big issue. However, it is the same issue
for those who build epoxy airplanes - because that is what a cedar strip
boat is really, an epoxy boat with a cedar core, instead of foam. All of
the cautions against cedar strip aircraft would apply to foam/epoxy
airplanes - yet there are a number of successful creations flying around.
The main difference is that you have to paint a foam/epoxy job because foam
is not intrisically beautiful - wood is.

I am not sure I advocate building a twin engined cedar strip fighter, but
the original query was regarding a Bowlus. It has no engine and the
strength demands are not nearly as great as a 10 G fighter.

Colin