Thanks, Nigel.
I posed this question because of the, as yet unsubstantiated, allegation that the aircraft was "slow".
An unintended inverted spin is confusing enough in VMC when tightly strapped into a clean, debris free cockpit. Add in the complication of IMC, the degree of difficulty magnifies by several orders of magnitude.
And now between man and machine there exists a filter (laws). My question was related to whether this filter aided or hindered a recovery or made no difference at all.
Abnormal attitude recovery training in the sim is unrealistic. Clean cockpit and always 1G sensed by your backside.