Update on my Ziex 512's...
I got a 4 inch nail in my sidewall last week
With only a couple thousand miles on the tires, I ordered a new tire to replace it.
Tire guy was nice enough to lend me a used Firestone Firehawk GT for the weekend so that I wouldn't have to drive around on a donut... in retrospect, the donut may have been better! That tire felt and sounded like it came off of Fred Flintstone's car!
Yesterday the ordered tire came in, had it put on, and sakes alive, all is quiet again!
Also, it's rained quite a bit since I got these tires, and they roll through wet and puddled roads with surefooted traction, way better than the Bridgestone RE92 OEM tires I had ever did.
So far, I'm very satisfied with this tire.