Woooooaaahhh there Right Stuff, easy fella.
I think jerrytug has a valid point.
Consider a high and STRAIGHT wing aircraft. When flying right way up, the lower CofG acts as a pendulous stabilising force.
Roll it over to inverted flight and the aircraft now has a destabilising pendulous force.
Now consider the reverse happening for a low STRAIGHT wing aircraft.
The aircraft might not know which way is up, but the CofG certainly does (and the pilot's breakfast also does)
FIS.