I built a few small Cassutts to test out my thoughts on the planform. . these were 300 & 400 sq in foam models . and because the setups are are so quick and inexpensive to do , it was easy to do comparable sized stuff with elliptical and tapered and straight LE Straight TE etc..
The structure requirements were easy to take care of -using flying wires and carbon fibre strips and rods and tubes
Anyway---the power off glide of the Cassutts was not great -comparatively speaking but the overall performance was the same - fast snaps , good high AOA slow speed stuff .
I have studied the Cassutt quite extensively and it looks like the basic layout -which has been subject to extensive interpretation, will work as well as any of the popular aerobats . A local friend built a Cassutt - I could not fit in the darn thing -
I have at the moment - a 33% EDGE-a 27% 260 a a28% YAK54 etc., and have done Zlins (by the armload ) including the Z50 for the TOC in 1977(?) I forget -
the upshot of all of this is pretty sobering .
The wingloading and power loadings make more difference than all of the rest of the characteristics put together .