Straight Flybar
When fully mounted in the standard way, the flybar will actually be bended. This appears to be because the flybar arm bushing has a hole just opposite the hole for the set screw. Therefore, the flybar is being pushed a bit into that hole...
The problem can be solved by filling the hole with a screw, as in the picture.
I filed a spare set screw flat. File away enough so that it does not stick out of the
bushing when mounted.
There are three important issues when doing this mod:
(1) Use a glue that is not ever vibrating loose. For instance green loctite or epoxy.
If this screw would go loose, the flybar might fly halfway out, probably causing a crash.
(2) Make sure the hole is filled perfectly flat at the inside. If there is still a bit of a hole,
the flybar will still be pushed into a bend. And if it is sticking out, you
won't be able to mount the flybar anymore. To do this I mounted the flybar first with the
standard set screw, but not so tight that it gets bent. Then I mounted the second, hole-
filling set screw at full tightness. This is also best for the glue, especially when you use loctite
(3) If you use a set screw to fill the hole, make sure that you don't file too much from
the tip of the screw which might create a fragile point.
NOTE: I did not notice any difference in flying. My machine flies very neutral now
but I think it did already before the mod.
