The Wagstaff Extra is a great flying IMAC platform, but it's not the best at 3-D work. You should check out the Kangke Texas Hurricane (looks just like an Edge 540) I have a Brison 3.2 in mine and the combo is killer, my son has one with a Brison 2.4 and even thats enough power to accelerate vertically. Harriers and elevators are stable, torque rolls and hovers are a natural, blenders go around so fast it almost stops coming down. Mine weighs about 15 pounds ready to go. Run a search on it, I think you'll find most owners agree with me.