Why According to some Turntable extremists Pitch Control and Direct Drive is Sacrilege?

I think the OP maybe needs to define and understand the question he just asked.  Are we talking about speed adjustment with a external knob.  Electronic automatic adjustment somewhat continuous.  Are we looking for the right 33.333333333 or that 33.33333333 not to vary or be stable.

The debate is normally over stability and mass vs electronic correction.  This gets into a endless debate which can be resolved  by listening.  OK that would require that someone could hear pitch with some sort of accuracy.

Seeing a stereo/ mono switch has nothing to do with pitch or speed, it might give us a insight into the OP intent or knowledge on the subject.

Enjoy the ride
Tom

You hit the Nail on the head!!!  Heavy platters for belt drives is the way to go.  The difference in sound is huge.  I feel need to build a heavier platter.  Have one at 33 and another at 40 lbs.  Most of the lead is in the outer radius so that helps alot.  

How do you set a 100 lb platter on the bearing???  What was the difference in sound with the extra  50 lbs???

Enjoy the ride
Tom