JacquesBernier

Hello to all Flyers. I'm a newbie with a used Master sled, arm and vest. It all seems to work well. Twice while practicing I heard a major loud "CLUNK"ing noise from the arm, at least once while in low mode. If anyone has had a similar experience, I would appreciate any enlightening replies. Is this a symptom of a minor or major problem? Am I doing something wrong? Jacques