o1Z0sick

Looking at these but before I get a set, has anybody confirmed fitment? I have seen the 17x11 on a C6Z which fit no problem. I am mainly interested in the barrel ID because some pics I have seen there is a step which could interfere with the control arm ball joint. Yes I have drag spindles, base C5 brakes and clearanced the appropriate areas so I can fit RTS or Darkstars no problem. I just don't want to be a guenie pig here and find out that they rub the ball joint.