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I use Girodisc on all corners. The interference only happens at front on some aftermarket pads that are cut a bit smaller than OEM pads. Girodisc contacted me about this, and I bought my new set of Raybestos ST43s directly from them, which they said are cut to spec unlike Porterfield-cut pads I've used before, and should not have any issue.
Going back to the subject, OEM rotors are not directional. I'd either user Girodisc or DBA replacement rings, which are directional, and would provide much better cooling.