Picked up a set of the ZIIs today and am glad they fit w/o any rubbing as the shoulders are significantly more square compared the RS-3s of the same size.
I loved the Z1 Star Specs so can't wait for 03/16 & 03/17 when I can flog these for 2 days at Chuckwalla! I'll report more once I have them broken in a bit but so far all I can say is that it's a good looking round of rubber!