I use flaperons on fun fly type of planes but never on any of my others. They are great fun in the wind, I have them set up on a 60 size Hots but they are slaved into my elevator, the more up elevator I use the more the ailerons/flaps drop. In fun fly events something like how many loops can you do in 20 seconds they are a big help for doing really tight loops. In the glide dead stick event they can be used by putting your plane into the wind and drop the flaperons, it will hover but it will also want to stall. When it stalls out I turn the plane back into the wind with them turned off then drop them again when I'm heading into the wind again. Big help in spot landing events too but you sort of drop them and plop the plane down. If I forget to raise them on a calm day and try a slow landing the plane tries to stall when you go too slow, not a good thing. For normal flying I never use them, it's just a fun thing but can bite you in the tookis if you don't watch it. Spoilerons can be every bit as much fun if you like to fly way high and just drop in for a landing. I do have the spoilerons on one of my Extras but they scare the kappoopa out of me sometimes!!!![&:] The flaperons really don't seem to slow the plane down for landing like real flaps, I look at them as another toy to have fun with.