I had bought the deep dish 18x9/18x10 set and I have been having issues with wheel shimmy. It turned out to be the 1/4" spacers. I was able to go down to half that size with no caliper issue and the shimmy is gone! For those getting these wheels, just beware you may have to fiddle around to get it right as one car could have problems and another not. You never know, but at least in my case I could go lower on the spacer and get the wheel on the hub.

 

my wheel shimmy problem was caused by the 2 rotor clips they leave on from the factory on 2 of the 5 bolts that the lugs screw onto in the front end of the car. once removed my wheel shimmy was totally gone. i have 18x9.5 all around with 275/40/18 all around as well