I have another question, separate issue (but maybe related to my control problem):

How "loose" should the flybar be? In my friends' TREX, it flops around freely with nearly zero friction.

On my Axe, its smooth and moves easily but there is some friction from the O-rings. Is this bad? Do I need to insure that the flybar is completely free to flop around, I mean teeter-totter with no resistance?