Wow, this is certainly spinning around. Lewm, in order to support myself in medical school I was a Hi Fi salesman at a store called Luskin's Hi FI in Miami, FL. It was a discount box store and volume was the key. On the side I installed systems in the houses of very rich people getting equipment from several places but mostly Sound Components the high end store in Miami. We blew up quads in HQD systems for fun. Not kidding. I can not remember the names of all the DD turntables I set up and evaluated. Can you remember the names of all the girls you ...dated? If you can you led a very boring life. At Sound Components many if not most evaluations were done as a group. No one thought the current DD turntables sound even close to being good. They were pretty and reliable enough so that you could sell one to John Smith with a straight face. Very few of the customers at Luskin's knew what they were listening to. The rich people certainly did not. The Owner of Flagler Dog Track though I did such a good job he had me redesign the entire PA system at the Track.
I made serious money on that one. I set him up with Beveridges, Levinson preamp and amps, a Tandberg cassette machine and Reel to Reel, and a McIntosh Tuner. CD had not been invented yet and he was not interested in Vinyl.
One thing we did notice a Sound Components was that DD turntables did considerably worse with MC cartridges. I can theorize why but I have proof of nothing. Is it possible to do a DD table that sounds as good as a belt drive. I guess. But, I have not personally heard one I would consider buying. There are other factors at play than just drive type. I have also not been exposed to near as much equipment during the last 40 years as I was back then. But no matter how you parse it putting an oscillating
magnetic device under a modern low output moving coil cartridge is a silly concept and I am not the only one who has that opinion although I may be the most vocal. I have no overwhelming proof to back up my opinion. But, It is my opinion and you are entitled to yours.
My next turntable is going to be Dohmann Helix 1 with two Schroder LT's
on it:)