Anyway I wont be competing so much with things he does, my forte is power supply design. Though I will obviously play with other things. What I want to work on is that the power system is almost digital, it is a series of on and offs, and the more on and off the better as they use in lathe drive. I have ideas to simulate a greater number of poles in how the motor is driven. Also the motor needs very much lower impedance feed. There is still backlash in the motor.
If you want a quick peek inside my PS-1200 PSU just let me know

But no direct copies, mind!

The thing about the SL-1210 is its amazingly accurate speed stability and virtually non-existent W&F, which has a remarkable knock-on effect in various areas of its sonic performance. Most T/Ts these days (even very expensive ones) are just toys in comparison.

Marco.