Brief Description: cowling on, adjusted idle setting, fast taxi tria
Recalibrated the magnetometer as I had reversed its position from cable rear to cable front... so it was all 180 degrees out!
Put the cowling on properly, and did some fast taxi trials at 45 knots, tail lifted, it was begging to leave the ground! Pulled the throttle to slow down, and the engine stopped! Idle cut-off set too low (650 rpm!) so cowling off, idle cut off stop adjusted, and then more taxying. Bigger wheels seam fine, beautifully smooth with the tail up.