As Enrique said, in my Skymaster F-16 1/8, I use flapperons and ailevators. More than 15 ° on flapperons, the model start to fly weird and at low speed with flapperons, ailerons become sluggish so I use ailevators when at low speed. (I have a mix when flapperons or gear down, ailevators are activated).

Hope this help<br type="_moz" />