Carbotech pads are manufactured locally in Europe, hence my question. US and EU pads might be slightly different dimensions.That is odd, mine definitely did not have that play when I installed them. I would need to pull the caliper and inspect them to be sure, but I think my tabs were a different design.
Mine are from Carbotech EU and don't rattle at all but then I've used disc quiet on them, so that may be the reason.