You should ask the guy that created this thread:
He's running the springs that came with the R&T kit + Vorshlag camber plates.
Also, Harold at HPA has installed at least one set (with Swift springs) on his own 1M or a customer's M3.
I'm running the R&T suspension on my R56 Mini Cooper S and it feels great on the street, especially compared to the stock suspension. Running JRZ RS1s on my M3s.