To help increase performance and save fabrication time,
each species population in the VAWT array experiment initially
consists of the first 10 (>0 rpm) individuals from
the previous single VAWT (z-varying) experiment, both normally
rotated and counter-rotated. These individuals still retain
a good degree of randomness while possessing some useful
aerodynamic properties. Each species thus maintains a
population of 20 individuals.