Put one on the aileron and the rudder.
You will love it!
The 370 is very easy to plug and play and setup.
If you have ever noticed a tail waggle on the F86 it will eliminate this as well.
you will just notice that your aircraft is much smoother. no more bouncing around or wingwalking. even smooth in windy conditions.
you can set up the gain on Aux 2 with 3 positions and change according to flight conditions if you like. I just turn mine on and never touch though. The aircraft just feels better.
Good luck!
Scott