I would suggest noting the washer next to the rubber dampner is of a special shape and the "hump"
should face bearing and the flat side should touch the rubber dampner.
I sould also recommend adjusting the correct "flybar length" (centering) without the paddles attached.
A paddle not fully seated on the flybar then used to measure for centering of the flybar
will cause a wabble never to be found. Center the bar, add the paddles center the paddle
length on the flybar. (I know you know what I mean and may explain it better).