RE: Are Flapperons ever a good idea?
Adding to the above category of thought from BAX, using the standard " landing pattern" is very helpful.
Begin slowing (Throttle) on the Downwind Leg, when the model is midfield. Fly Downwind Leg out for a good distance. If you maintain a slight Nose Down attitude through Downwind, Crosswind and Final ... as you continue to reduce power, you will keep enough airspeed for control AND bleed off ground speed(so to speak).
Arrive at landing field threshold, then level / flare to touchdown.