I will be posting thoughts and reviews on my just purchased Kumho Ecsta 4x here. They seem to be pretty popular (at least in terms of people inquiring about them) so I figured I'd start a log:
Tire - Kumho Ecsta 4X
Size - 245-40-17
Wheel - MB Weapon 17x8 +35 5x100
Suspension - KYB AGX, JDM STI Springs, Whiteline Wagon rear sway (set at 22), Whiteline Front sway (set at 24), Group N top hats.
Past tires - BFG G-Force Sport (most recent), Bridgestone Potenza RE750, and Toyo Proxes 4.
Tires cross-shopped - Michelin Pilot Sport A/S, BFG G-Force Supersport and Bridgestone Potenza RE970 AS...ultimately went with the cheaper Kumhos after reading scores of good reviews as well as Tire Rack's recent comparison test.
Pressure settings - Winter 32 F&R - Summer 38F / 33R
Purchased 11/10/12 @ 112,000 miles
1. Great turn-in / responsiveness
...very surprised how responsive they are even at the winter pressure settings.
2. Grip is good on the street at moderate to aggressive driving.
3. Ride / Comfort is pretty good...definitely better than the just replaced tires.