Originally Posted by Dre25
Well shouldn't that mean they're exactly the same.
Well... no... not necessarily. as per user mikeL on 2/19/2012
"The dials are essentially an engineering measuring device for machine tooling etc.
They are adapted for drum use. If the springs used are of even a slightly different tension, and they will be, in the same model and make of dial, you will get a different reading between dials. They were not designed to measure pressure (the head) but flatness/depth."
... I agree with Mike but was hoping there would be some consistency between the dials that could be compared.