Just make sure your lines are good. I had one still in plastic since i bought a few kites in 09 and only used the 1 bar. The new C4 is nicer though and has a better trim system.
Yep Ozone bars are backwards compatible. But the sports had quite a long bar, about 60cm was the norm if I remember correctly. It'll work, but if the kites small it'll be a quick looper. Have Fun and send it!!