I think it was Raz himself that told me about him getting wobble with a 345mm setup, a good few months ago. So it seems he's got the same issue now with a different set.
Maybe I read into things too much, but I've definitely heard a few people saying they have the same problems.
Something to do with the calipers coming off and going onto another car maybe, and the type of caliper/disc is just a red herring?