i use air brakes on mine. flaperons. and they both go up between 1/8 and 1/4 inch. it slows it right down. i run a saito 72 with a 13 6 apc. went to a 12 8 to try it. works well to. but i can come right in on the runway and set it down. u can see it slow down in the air when the brakes are hit. it works great. and id reccomend it. now some other gys at the field are trying it. this is one fun fun airplane. lots of fun. cya bill