https://www.willswing.com/hang-gliders/sport-3/

The most significant aerodynamic revisions to the Sport 3 are a
redesigned sail and stability system that together provide for a tighter-flatter
sail and allow for lower sprog settings. This lower twist sail both
significantly improves high speed performance and reduces pitch pressures at
high speed. These changes also contribute to improved handling across the speed
range and range of VG adjustment. The Sport 3 can also be configured with carbon
fiber raked tips that increase the effective aspect ratio, reducing induced drag
to further enhance low speed performance.

The Sport 3 airframe introduces new tuning options to more effectively optimize
the control and handling characteristics for a wider range of sail
configurations and pilot preferences. Now it’s easier than ever to tighten an
older sail or loosen a crisp new wing. The Variable Geometry System has also
been redesigned to be more effective and easier to pull. A Kickstand Stinger is
also included to make setup and breakdown even easier.