Where are you located? I have 1 year old 17" ZO6 replica's from Lakeshore wheel and tire. No rash at all, they are pretty much new with 3k miles or so.
I frankly don't care for them on my Camaro nearly as much as I thought I would, and am looking to get 35th anniversary wheels instead.
Problem with staggered 18/17's is you can't rotate front to back. Our cars feather the front tires over time and you end up with tires that go "whomp whomp whomp" at low speeds.
I live in Ann Arbor / Detroit.
2000 Z28 MRM/Tan Convertible A4
!HS (founder), SLP Lid, Tamed Corsa Catback, HP Tuners, 3.42's, TA Cover, Koni's
Cheap 17" Z06's w/ Fuzions, Stull Grille w/'69 Badge, Custom VHT Tails, Stainless letter inserts, Black Halos
JBSlim 4x 8" sub box w/ RF subs, Kenwood HU, Alpine & Infinity Drivers, Memphis Power, and a touch of Dynamat X