Ok, figured out one stupid thing I've done. I think I had the pads wrong (wasn't paying enough attention). In the picture you see the stock pads on the bottom left. The one with the two circles is obviously the inboard pad where the pistons are. I had the two on the right hand side installed on the driver's side. My assumption is that both of those should be inboard since they have the circle area for the piston. You can see I had the top left installed inboard (on the passenger side). I can't see how this could create the issue I'm having, however it's wrong for sure. I find it strange that the metal lining on the outside of the new ones doesn't extend up into that semi-circle area like the stock pads do. Do I have my arrangement correct? The top two should be on one side with the semi-circle ones inboard.