Any real sonic improvement using 2 or 3 belts on VPI tables?

To use more than one belt on your VPI you must upgrade your motor pully to the HRX motor pully, $80.00, once done you can use multiple belts, I use two belts and have tried three belts but could not hear an improvement with the third belt where two belts was quite an improvement over one belt.

My table is a VPI  Prime and just added a Single Motor Flywheel Assembly that comes with the HRX  pully already installed. Might also mention that I have the SDS speed controller which you will need to switch speeds otherwise you are limited to 33.3 rpm.