Many years ago at a flight instructors renewal (when I instructed) the subject of alternative spin recovery came up. I remember the examiner explian recovery could be achieved with ''in to spin aileron'', which would increase the stall of the upgoing wing with increased AOA and cause it to drop and visaversa the result being an end of autorotation.
This was so long ago I can't remember the type but seem to remember it worked during the airex.
Has anyone ever come across this technique or did I dream it?