Good to see that there is still interest in the Regular heli side of the UDV development. I am an old heli guy for sure. But I also have delved into the quad/Tri rotor area for a little while. I have about 4 multirotors that I scratch built and they fly well. But they got boring pretty quick. I own about a dozen heli's (down from 25 or so) from 450's to gasser camera ship. Also interested in stabilizing a larger coaxial. I have a couple friends that have a model capable of larger payloads. But for now I'm comitting my 450 and 600E to the autopilot effort.
But I'm still playing with my EasyStar though. Learning how to use the Matrix system. Always excited about stuff like this...