"I should have put this in before. On the Double Reverse Spin both the man and the lady turn your head , for want of a better description, Hard left."
Yes, one school of thought holds that the use of reverse CBM is first visible in the hips and head, but no so much in the shoulders. So in the initial stages of a reverse turning action, the lady can have a feeling of really looking over her shoulder.
As leader I'm going to have to experiment with keeping my head left - I know I usually allow it to spot somewhat in a telemark, so it will be interesting to see if this helps magnify the difference.