Multiplex Profi TX Operating Instructions Manual page 145

The menus
Lever
Is only required for 3-point swashplates whose linkage points are not equi-
distant from the rotor shaft centre for mechanical reasons.
The difference is set as a percentage (%) of the radial distance (from rotor
shaft centre to the linkage point) between the MAINROTOR-FB servo and the
lateral MAINROTOR-L. / MAINROTOR-R. servos. The lateral levers are set
to 100%.
Setting range: -100% - 0° - 100%
Default: 0%
Example
Distance for MAINROTOR-FB: 40 mm
Distance for MAINROTOR-R. / MAINROTOR-L.: 50 mm (= 100%)
The lever for the fore-and-aft linkage (MAINROTOR-FB) is 20% shorter than
the levers for the two side-mounted linkages.
So, you apply the following setting: Lever +/- -20%.
PROFI TX
Page 142