Flying Changes

My horse is confirmed in flying changes, however I have a diffiuclt time changing from left to right, what do I do?
Check your postition to be certain that you are asking with the correct aids. A good excercise is to ride counter canter to a simple change,
many times and then ask for the change as if you were going to do the simple change. The quality of your simple change will tell you where
your position is weak, and when it is seemless you will perform a successful change. You must have a clear rhythm, straighness, impulsion and most importantly a relaxed canter stride before achieving a change.