To play a properly operating Grand Prix is a joy. This machine is the closest an EM ever got to SS performance, with a myriad of devices replacing an MPU. At first I thought it boring, compared to the other EMs I had it was just too smooth.
Yeah, the spinner on the Left was problematic with the ill-secured Plastic interfering with it's rotation.
This one had two banks of rat-chewed Relay wiring when I found it. Grand Prix requires meticulous Service on ALL relays, steppers and switches.
My current Favorite, it is really a remarkable achievement from Willliams though complicated.