After a long break, it is a good time give an update of my zLine tires. I have been very satisfied with them in performance wise. They have a really good grip and they give nice steering feedback. Pushing the throttle gives me a nice smile every time :) Tires are little noisy though, but the changed tire size (255/40/19 --> 275/35/20) is probably the biggest reason for that. My biggest concern at the moment is vibration during low speeds. At the higher speeds vibration almost disappears. I have balanced all my tires twice and checked my suspension setup twice by local Ford dealer. Dealer did not find anything wrong about the suspension and everything is tight there. Now I just need to get little bit more miles on my tires and see if anything changes.