I agree with your assessment of the flight, but not that these characteristics make it a pro-level disc. I have about 450 of power on an average day, and I actually hate how different the Kong behaves with slight adjustments to power level. I have some beat Forces that behave more linearly, if that makes sense. If I throw it this hard, it flips this much. If I throw it a little harder, it flips a little more.
With the Kongs though, there is like this threshold where the thing just turns like crazy, but below that it wont really want to turn much at all. Makes judging their line kind of difficult. The only use I have found for them so far as been as hyzer flip to flat drives when I want to throw hard. Anything else they do seems better done by different Forces.
Maybe I'm wrong, but that's how I see it so far.