I have done some experimenting with aileron settings by using a computer radio with the ailerons set up as flaperons; i.e. you can trim in any amount of up or down on the ailerons simultaneously with the flap control yet have normal aileron control. Yes, minor changes can make a big difference in how the plane flys. You can usually find a sweet spot where performance is as you like it. I set it up so that, with change in throttle setting, little change in altitude--just increase or decrease in speed--and there is usually a spot where the trim doesn't need changing to fly level wether you are inverted or right side up. If you have a computer radio and two servos on the ailerons, it is an interesting experiment.