Yep you are correct NoD - increasing speed of rotation is remarked on as a sign of correct recovery technique for the type in question.
Perhaps there is confusion as to the purpose of the thread.
I didn't originally ask about how to do spin recovery, simply how does one reliably establish the direction of a spin. (I was thinking of an inadvertent spin during aeros practice you see). I never actually asked what the the recovery technique was, that was just an interesting side topic that came up.
Clearly the POH or in this case handling notes and an AIL are the place to look for exact technique.
