Mike,

It is my opinion that 66/61 knots is not too high for the AOA settings.
This is slower than any normal operation.  Also consider that in case of a
real impending stall the speed may be decreasing at several knots per second
and it takes some time for the automated voice to warn and several seconds
for you to respond. The AOA on my 235 is set a little higher than that and I
do not get any significant number of false warnings.  If the warning does
sound it is because I am off target  AOA even if I am not about to fall out
of the sky.  My wiring puts the warning only in the pilot's headset so
warnings are not an issue for a passenger.

Ross W. Colebrook N7828 a 235