First off, if you are running a Lipo, WATCH YOUR VOLTAGE!!!! Don't go below 9.0v dc, or your battery will be toast. second, you probable have a switch in the wrong position, like an idle up or a idle lock <-look in your manual. Unfortunately, as the servos go, I wouldn't know about the ones you have, I am running HS-5s for the swash, and an HS-50 for the tail. No problems yet, but I am only doing hovering and basic flight, no 3D. I too, however am using the 401, awesome, would never replace it! Again, the Castle Creations 35 amp controller and 430 motor. no problems.

Good luck.
Ron