That's true, the main spring action results very weak now. Before this mod i removed the spring, i liked that super smooth feeling; now, with the extension the main sprong returned home.
Most the time i fly choppers; for me this setup works fine.
It keeps the position, yes.
Grip throw is about 19 cm, measured from the base of handle grip (point of the arrow). Really too much, so i reduced to 50 the "X" axis saturation for pitch and roll axis.