Air is a suspension medium is it not?

 

Not in my experience. Both the Vpi and Verdier benefit from having the motor assembly located on a seperate isolation platform. You might want to experiment there with the BL - I suspect you will be as surprised as I was.

 

Ah, speed stability vs motor vibration? I don't notice speed irregularities when listening to SME's, Vpi's or even Linns. Just as you probably don't notice the motor noise on you BL.