Took this thing out about 5 lbs overloaded with a 17 lb payload to see how she handled it and the throttle ranges came together closer, but still not dead on. From what I'm seeing on video and current draw, I'm pretty sure the residual counter level is preloading yaw...... never seen props in such unison.
Killer vibration levels! I had no idea it could ever be this low. M6 and M3 are still slightly pulling against each other, though.