Use two ailerons... Many resaons safety if lose one, flaprons and easier etc. Don't go all the way flat it's a trainer 1 1/2 to 2 inch. on the stab finish build and check yours may be ok. I sanded the fuse, taper the back app. 1/8 inch so all went strianght with engine thurst. On sim IMO get before extra tx then tx with mixing if goning with flapron. PS wife verse this hobby no mix Ha Ha