Dave,
I am wondering out loud here for a sec. You tout the synchrocopters ease of flight because torque is canceling itself out. However I just got in from a flight in the Huskie and after consideration I don't see how you will get away from some of the interesting flight characteristics exhibited by the type. For instance you must lead pedal before a cyclic input is made for a turn or you will find yourself well out of trim and doing wierd things. I also would like to point out that in certain flight modes pedal response is not responsive at all. Just a thought.
Brian