BWV 1000,About four years ago I saw Nancy Byl at University of San Francisco, who was one of the physiologists that worked with David Leisner. She showed a VHS tape of the exercise David was using to recover, but as with you, it didn't "click". I'm about 50% there having control over a compensatory "i" finger for a dystonic "m" finger. For me, arpeggios on the guitar are impossible, imimims are very difficult, as i wants to go up to compensate for m all the time. I'd be very interested to hear about your session if possible.