Thanks for the well researched answer.
This is not my first FC. I have been flying one for 2 years. Have ail. dif set up mechanically. I had a pair of normal and reverse servos that I used on my flaps.
I have been on the FC thread and know the option of hacking on the wing
IMO a high end 7 ch radio that only allows a 4 ch wing to be setup in GLIDER mode is lame
My old Futaba allows any ch to any ch mix with no switch to flip and the trim is slaved as well.
The fellow that I am building this for had a "magic Y" servo reverser that he was not using, so I will use it off CH6.
ch assign will be
5 tow release
6 flaps with reverser
7 not used