Kumza Stabi S or Rega P10 ??

If ~ $6k tables aren't too far out of line may I also throw the STST Motus DQ as another to investigate? Since I have an interest will just leave it at that :)

One point I agree with @mijostyn in that I wouldn’t even think of using a Rega with a high end MC without the wally analysis and resulting shim set.

Anyone who has setup a cart and dialed in by ear knows that the extremely rough ’ shim under arm base ’ Rega method is not going to get you there. t least not in every instance..,

J.R Boisclair at Wally Tools offers it. You send in your cart and they determine deviations for sra/zenith/azimuth for your cart and make a shim with corrective angles that mounts between cart and arm. 

For many full adjustable arms this might be accomplished in other ways but not with the Rega.