"Wagging tail => T-Rex 600 is happy..."

[GravityKills]

I just found this on another forum - you live and learn. It hasn't happened to me, so I couldn't verify the problem:

Apparently, on some T-Rexes it is possible to insert the tail boom too far into the frame and the tail assembly.
As a result, the umbrella gears push the torque tube, it doesn't run straight. This results in bad gyro karma.
What can you do? Leave a tiny little bit of space.

[Guest]

I think this is what was advised in the Finless build vids for the 450 Pro. I do not remember the reason but I reckon it was for a similar type of problem.