OK I wasn't aware of these subtleties in meaning between the derogatory "stunt" and the all-encompassing "sport"
And it does match how the community actually uses this in practice and presents itself to the world.
I mean, search "stunt kite" in Google you get "About 1,600,000 results"
If you search "sport kite" you get "About 67,200,000 results" !
So I will definitely go for:
- Sport kiting
- Slack line flying
- Freestyle kiting