Hi, just like Tall Paul mentioned, it needs the control surfaces directly behind the prop-blast for any kind of hovering performance unless you consider a strong headwind. Basically its a variation of the flying STOP SIGN with an airfoil. That will help creat more lift and hence the slow flight at normal AOA. I do agree that to have better control at slow speeds ailerons should be used. Rudder alone can help so much on tip stalls. If the airfoil is thick enough that will also help fly it because high reynolds number. Consider lowering the "sorta T-tail" configuration to avoid high center of gravity and the possibility for tip stall sooner.