Just put Mueller's hubs on my '74. All I can say is; Nice!
Once the new pads are seated things should be stopping better. I've gone through fresh stock brakes and BMW calipers before this. My '71 has M struts and calipers, so that's what I'm hoping this will feel like...

>EDIT> Update!
Somthing I learned:

Mike's hubs are machined a little different than the original rotor/hubs. For one, the wheel mounting surface is closer to the inside, making the wheel inset by 10-15 mm. I had to add 6mm spacers to get the hubcaps to fit...