Thumb and finger types say you get finer control movement their way,and they are probably correct .Many Europeans swear by trays. Old single stick flyers (like me) will say we got (get) finer movements with our even longer stick using thumb and finger and I think thats true too.There is an alternate way to do most things,no one way is perfect,and if you are comfortable with thumbs and fly to your satisfaction then stay with it and stop busting planes up over it.Do you use a neckstrap?If not try one....