The ground handling issue is solved for me :
1) The POH recommendation : apply brakes , increase torque and release brakes when in torque range 40 - 60 % .
2 ) In the Laminar control sensitivity window, I moved all three control response sliders all the way to the left.
3) Moved the stability augmentation slider for yaw to the 50% mark.
The default position for control response is at the 50 % position .
The fine print describes this as giving finer adjustment when the joystick /rudder is in the center position.
Whereas in the leftward position , control response is linear . I interpret this leftward position to mean if I move my rudder a small amount it will make a small correction of the rudder on the plane., not some value calculated by an algorithm when the slider is to the right.
Whatever it means , I now look on take offs and landings as a far smoother ,enjoyable ,predictable event.