[gbanger]

What model do you want to put the spoilerons on Steve.
Aircraft that land like Hotliners need them and really floaty aircraft like the Eflite Apprentice are easier to land with them deployed because as Jason said they produce a lot of drag and slow down the aircraft but they also destoy lift so when you hit the switch the aircraft behaves very differently.... they sink fast. If you operate them with flaps (this is known as crows footing)... flaps down/ailerons up you litterally stop the aircraft in its tracks because of the huge drag generated but they become very hard to control, so you only turn them on when you are lined up for final or your world will go horribly wrong very fast.
Hope this helps
Gazz