@wheelrich I have the Cobra and absolutely love it - I would have considered the Kush, but TFL announced it literally 12 hours after I'd ordered the Cobra. Still, I got the Cobra on sale, so I feel it was worth it.
I've only ridden stock, Cobra, and tried my buddy's Craft & Ride extended, and I can definitely say that of the three I like the Cobra best. As you say, the level of control is crazy good - something I think gets left out of these discussions, like it does frequently with the tires, is "under what conditions do you do most of your riding?" I'm a city rider, so the can-shaped Vega works well for me, since I frequently have to stand balanced on the board at stop signs and stoplights. Adding the Cobra TO the Vega, lets me have the best of both worlds: easy to stand on when stopped, easy to "push" and fine-control the Vega when moving (I imagine the Cobra plus one of the more rounded, "carvier" tires, could be too much; too squirrely, too sensitive, though a really skilled rider might be able to do some really neat stuff with it). But for me, the Cobra/Vega combo makes weaving through a crowd of pedestrians, or around stopped cars at an intersection, effortless; like dancing.
I will also say that the Cobra completely eliminated my back-foot fatigue, 100%. It's not cushioned (though maybe it's slightly more shock-absorbing than wood), but that steep concave lets me stretch my arch/toes frequently as as I turn or carve, and the Cobra makes you WANT to constantly turn or carve. I'm also not worried about how it will hold up, to sun or water or anything. I'll be curious to see the Kushes in a year or two, to see if that foam breaks down at all, or gets tacky to the touch and starts picking up dirt and gunk.