Another Platter Speed queston


So I got the Dr. Feickert platter speed iPhone app and tested my Well Tempered Classic TT with the Analogue Production's Test LP.
When I ran the track with the 3150Hz tone, the app was reading a mean frequency of 3171Hz with my speed at higher than 33 1/3 by about .05% if I remember correctly. So I have three questions:
1) If the tone isn't exactly 3150Hz won't that effect the accuracy of my TT speed?
2) How would one adjust the speed on a Well Tempered TT?
3) Could the test LP's tone be wrong or is the app reading it wrong?
thanks
ebuzz

Showing 1 response by atmasphere

If there is build-up on the motor spindle due to perished belt material, it can run too fast.