Just info..

I used a micro 12 oz servo directly behind the firewall with linkage about 1 1/2"
I have a full computer radio I fly, but I used no mixing/curving on the throttle
The saitos do a great job and reliability is solid. I use no glo drivers, although I consider doing this.

I do use Ail/Rud mixing for cordinated turns.

I did use expo on elevator but this was a real negative on landing. I could not get quick enough response around neutral for landing. This resulted in my first landings being very hard and a drop in from 3'.
I do mix FLAP to ELEV. This was a really big deal. Large pitch changes with full flaps. Once I added mixing I can add flaps, slow down with little pitch changes.. vettdvr