Hi JohnG - Fortunately, my chicken-walking plane was an F-86, and it did its little trick as I was taxiing it around here at home. As soon as I would hammer the throttle, it started alternately dipping its wingtips. It made my kids and the neighbors laugh, but they already knew I wasn't wrapped too tightly. I reserve other more sophisiticated methods for humiliating myself at jet rallies. BTW, I shortened the gear struts about an inch and the problem went away.