Swing-n-flings are one of the great benefits of belonging to the SkyHigh Club.
At these events, members can practice the deployment of their reserve parachute ... and have it re-packed by professionals for a very reasonable price. Since it is highly advisable to have your reserve re-packed at least once per year, the Swing-n-fling is a great way to get this done.
Swing-n-fling events usually are held around August/September at a school hall. See the Calendar for future events.
Check out Johann's excellent video: