I usually fly a fuel, but last weekend had a session in 18-24kts on a 12m 2006 reactor, a kite I always wanted to try.
It was great, instant response to steering input, fast across the window, totally predictable, little power with the trim strap pulled in a bit overhead, but huge power sining the kite or once up to speed.
Kiting is about making power and destroying power, not just about "sheeting out."
That's what C kites do, and they can require more skill and quick reactions, if you want high performance.
All the other types are fine, some even go 50knots, but once you really learn how to handle a kite, you ought to try a C kite, just for pure fun, in my opinion, at least.
Any of the good C's from the last 3 years are much better than early models.
I hope to keep flying them and buying them for a while!
BTW: I don't see the fuel as a delta -deltas have little tips, fuel has big tips, for one thing....
And then there's %PA, bridles, throw, profile, etc.