I have flaperons set up on one plane and they are slaved to the elevator. I have used them on fun fly planes but everything Ken and John said is correct. On calm days if I forget to turn them off and try to land my Hots, it will try to tip stall on me. I haven't had it get away from me but I have had some close calls and I'm not a new pilot. Find a club on Kens list and take a little trip. On a plane using strip ailerons it is better to add a servo and install true inboard flaps or use a low pitch three blade prop to slow the plane down a bit. Flaperons can be fun but wait until you are a very good pilot. Spoilerons I gave a try on one of my favorite planes and they scared the peewaddle out of me the first time I activated them. I no longer have them set up in that plane. They are great on a glider though.