Hi Audiogon Members, I have not weighted in on this issue in a while so I thought I would add an addtional 2 cents to the discussion.
1. The pulley that I have on my scout turntable is not tapered. When I upgraded from the 600 RPM motor to the 300 RPM motor I replaced the tapered pulley.
2. I got the original idea to add a second belt from the VPI web site. Take a look at the super scoutmaster and HRX photo gallery. Both tables use twin belts.
3. If I view the motor pulley from the top I notice a very slight wobble. I have tried to adjust the pulley to minimize the wobble, but a small amount is still there. The table could probably use a machined metal pulley like the one on the vpi flywheel.
4. I installed two new black vpi belts at the same time.
5. I stick by my orginal statement that the sound is improved in the following ways: better image focus, better bass, more resolution, and better pitch control.
6. I will try adding talcum power to the belts to see if there is any additional improvment.