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

 I have a TNT three and I found the best improvement by far was to go to dental floss.  I found the belts to degrade the sound so I would have a tough time understanding how more could be better. 

My understanding is that different levels of the Classic pulley have slightly different diameters.  

I did have a scout several years ago and tried the floss. The platter was much lighter. I have not tried it on my Classic. 

I am interested in the 3 belt because I am going to build a table and wonder if 3 belts is worth the effort?

rim drive......

VPI pulleys have different levels (speeds) built into the slight conical shape so it makes zero sense to use more than one belt; they will fight one another with increased friction. I have an Aries 2. I would like to try floss though, that sounds interesting.

I use two on my classic and according to my rpm gauge I get slightly better speed control.

stevecham,
The Avenger has a pulley that is not conical. The table is shown with 3 belts.
https://www.musicdirect.com/turntables/vpi-avenger-standard-turntable

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.

tooblue,
I saw that pulley and was not sure if it would work on my classic. I'll call Music Direct today and get one. I already have several belts so I don't need them. What table are you using the multiple belts on?

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.

I have the Eagle/Roadrunner to correct the speed. Once I get the new pulley, I will use the Fieckert software to compare the difference between one,two, and three belts.

I have a VPI Prime, use an Eagle/Roadrunner, currently use 3 belts with an HRX pulley, which as already explained is a necessity.  I found an incremental improvement with 2 belts, but adding the 3rd belt did not make any noticeable change. 

I only had 2 belt to work with. I am going to try a third just for the heck of it.

+1 @tooblue 

I will say that at some point I'm going to order a custom Mark Baker belt for my VPI tt project that uses a ADS/SDS pulley w/ my ADS.

Just for kicks.