ArduPlane 3.7.1 on both Pixhawk1 and Pixhawk2.1
After the Pixhawk2 service bulletin I moved MAIN 1 to MAIN 7 and set the RC7_FUNCTION to 4 (Aileron) but the ELEVON_OUTPUT does not effect MAIN 7.
The differential spoilers are also not mixing according to elevon_output. I have smaller tabs wired RC5&6 with RC5_FUNCTION=16 and RC6_FUNCTION=17 but they seem to work with left yaw only.
With main tabs connected to MAIN 1&2 and elevon_output set to UpDown, they work as expected but I can't keep using MAIN 1 without the SB0001 fix.
Anyone got elevon mixing and differential spoilers working and if so, please pass on the wisdom.