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Correct way to us Shure VTF gauge?

Hey guys, I have one quick question for anyone using the Shure Gauge to set VTF. Should you make the arm bounce slighty after placing the stylus on the gauge. The reason I ask is because when I just gently place the arm on the gauge using the cueing lever it wll give me a reading of lets say 1.5g, then if I bounce the arm a little while it is resting on the gauge the reading will stop at aprox 2grams. Are you guys finding that you get a different reading when doing the two above mentioned methods, or are my RB300 bearings screwed? Is there something terribly wrong?

Thanks for your time,
Dave
ziggy23
dennis_the_menace's avatar
dennis_the_menace
467 posts
 
Rega250... the vector doesn't act quite the same way, but the cue lets the arm down very slowly, slower than the rega
dr_balance
16 posts
 
Lets narrow it down a little then. Anyone with a RB250 or RB300 seeing the same behaviour? If not same behavour then please still post and let me know.

Thanks guys for your responses,
Dave
shasta
155 posts
 
Assuming the arm bearings are perf, what you're seeing is bearing 'stiction' -- sticky friction. A tiny bit of lube on the Shure gauge's pins ("bearings" in the loosest sense) will help. I can't recall what I used -- Pedro's Syn Bike Bearing lube, VPI bearing lube, WD-40... but it really helps.

You might also try polishing the pins a tiny bit with some ultra-fine wet/dry paper, but I'd pass on my own advice. 'Cuz you might wreck the roundness (sphericity?) of the pins, or even much, much worse: get caught doing it.
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