John Firth wrote:

so viciously that I did not let it autorotate. It had Clark Y section
and no washout as I recall.

The Baby Ace has a clark Y with no washout, little dihedral,
and a similar viscious wing drop.

The elevator is so heavy, and C.G. set up so well, that it
doesn't really stall well unless loaded real aft.

This is another example of an aircraft that would likely spin
radically, but is designed to avoid this by making it hard
for the pilot to inadvertently stall...