Here is a video demonstrating the American Sound AS 2000 platter free spinning. I hand rotated the platter to about 40 RPM and waited for it to slow to 33.33 RPM and then started to record. The video shows the platter speed slowing and then eventually stopping.
This is the result of a very high mass platter on a very unique baring designed and executed to an exceptional standard. The result is superb speed control and silence.
Feel free to skip to the end. The video is long but one can see the effect of the changing light as the sun sets outside.
What impressed me the most was that you had the patience to stand there and record it for 30 minutes!