It depends on why you are winging? People that have a DOWNSWING like, or similar to a 10-7-H, often have a Chicken Wing.
Usually goes like this... Take away low and off plane; lift arms to Top; 10-7-H Down, with Full Sweep and Throwaway; Wing during the Hing Action Interval and at where BOTH ARMS STRAIGHT should be; pretty finish.
If your procedure is sound, except for the Wing... then just follow Mr. Yoda's advice, and fix the FRONT of your STROKE.