@dover You said the weakness of the 124 is the belt. I agree. In fact I was just wondering if I could build some kind of kevlar belt for it. Something more stable. Belts are definitely a problem.
Also interesting point you mentioned regarding the self correction of AC motors vs DC motors.
@rauliruegas I've read Fremer's reviews. I can't speak for measurements using a vinyl disc but I do believe gyroscopes give pretty accurate readings and I stand by what I said.
The 3 turntables I mentioned are all direct drive but they use some kind of wizardy technology that I don't understant. They are the exception. And that's why they are the only ones to have those numbers published.