I might be wrong, but I think that the Sport has the Tornado jib, which is also a bit smaller than the standard 5.9 jib.
There have been 3 evolutions of the 5.9 with a kite
1, Standard rig with kite
2, Standard mainsail with Tornado Jib (not a self tacker) and kite
3, The Hurricane 5.9sx has standard mainsail, SX jib which is in a selftacker and kite
