I think the whole steering feel is BS. I had the same NT01s on stock 18s (4 rears) and then on Apex ARC8s which were a lot lighter. There was a difference. But I can find much better ways to spend $1150. At that price, you're halfway to a stoptech BBK. Their replacement rings are about $275 ea and are easy to get. Good luck finding rings for those Rotors.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red