Hi Sam,
Yes, I made a little Manipulate tester to find the offset. My approach is to have a function that can be used in normal MMA explorations. I'm working on using the event handler to detect a mouseup event, at which point the left-hand image will be drawn. That should allow fast image rotations, although it isn't what I'd really like: to see the stereoscopic movement similar to the flat movement.
Eric
