Anyone using a Rubato Copper turntable mat?

I'm bringing a Gates CB-77 turntable back to life. Press info on the Rubato Copper mat states this heavy mat works well with direct or rim drive tables with powerful motors. I think Gates sourced these Ashland motors from the Maytag washing machine surplus department. I would appreciate any shared experience or knowledge you folks might have. How well in works, any U.S. distributors etc.
Thanks in advance from a fellow madman.