If the ailerons only need minor adjustment you will need to unhook the plastic clevis from the control horn on the aileron and either screw it in or out, depending on which direction they need to be adjusted. I took my son's Avistar and set all control throws to maximum by moving the connections at the control horns and servo arms. On the ailerons I had to carve out the hole on the wing halves that the control rods go into so that the ailerons would get maximum movement. Needless to say, it is very responsive and agile now and he loves it. Not that the stock settings were not that good but he was getting board with them. It is probably just a matter of time before the wings rip off of it because of how quick and tight it manuevers now.