Thank you Mark. This is a project started with the rediscovery of rim drive benefits over belt drive, but no upgrade from VPI for single motor, so I tried with spare parts and the result is well superior compared to one platter belt drive. The project is so rewarding that I continue with better damping and a new plinth will replace the acrylic one, a sandwich slate/aluminium/carbon full size plinth with a cool design. As always I have to try and compare before adopting a new step in progress. Also mylar belt drive with modified motor rubber shaft soon coming.
The tool you suggest on this thead is essential for proper platter adjustment.
Thanks for the input !
Jean.