besty, I once owned a Transcriptors Hydraulic. The thing was irresistible of you were a gadgeteer, which I was and am. However, the shortcomings of the turntable and especially the weird tonearm with the floppy headshell were readily apparent, even then. If you're old enough, you recall seeing it in the futuristically violent movie, "Clockwork Orange".
Ct, If I have a total misconception of La Platine, why not inform me and the others? How would the platter and motor interact? I realize the motor could have a controller to set voltage and current for optimal speed stability, much like the operation of a VPI SDS or a Walker Motor Controller. If that's what you are talking about, please do let me/us know. Those devices work on the motor in a favorable way, but they are not best for sensing and correcting speed errors due to belt slip, belt creep, or stylus drag. For that, it seems to me that the Verdier relies upon the high mass platter and its rotational inertia. Not that there's anything wrong with that. It's just not my preference at this point in my audio life.
By the way, wouldn't one assume that La Platine dealers know how best to set up the turntable? So, why should I not report what I saw over and over again in dealer showrooms over a period of several years? And also in the home of a local friend who uses a La Platine currently, and who is a very knowledgeable hobbyist and informally also a dealer. Tell me, how far do YOU place the motor from the turntable? Because there's no way the motor can be mounted on the same base as the turntable, which would be closer to ideal, in my opinion.
My use of the phrase "I don't know how" was only a gentle way of saying it seems impossible that the platter talks to the motor or vice-versa. I'll try to be more explicit next time.