Thanks to Grant85 I have now been able to check the pitch on my blades. I have to say they were miles out, at least 3 degrees in each stick position.

Before checking the pitch I had the head off and, with the use of a standard engineer's square, I checked the swashplate level. It was only one turn of the control rod adrift on the elevator servo.

I've sorted the blade pitch out by adjusting only the short rods on the heads. Both blades needed two turns on each rod. I think things could have been worse, or more uneven, had I not used my verniers to measure the control rod lengths right through my build.

I've re-checked my gyro setting too today and re-bound my Tx and Rx.

At present the blade pitches are set to +11, 0 and -11 on linear pitch and throttle curves. I'll wait for some advice as to whether I should amend that for a newbie.