Which VTF Scale are you using?

+1 on Ortofon DS 3 digital scale. Utmost accuracy and reliability. 

https://www.ortofon.com/ds-3-digital-stylus-pressure-gauge-p-708-n-3444

+1 wolfie62 
And it measures just fine .. bundle pack x5 for a modest $20 . EBay... 
Gave one to a friend, another to my brother and use one my self.. 
Used it to setup my brand new zyx ultimate 4d x on Saturday night..=) 

Audite84 and vassilis, I hate to tell you this but the same scale is available on Amazon for $40.00 under the "HiFi Guy" name. The Chinese do this all the time. They design a gauge for Ortofon then either sell it to other people like Jelco or sell it themselves undercutting the price substantially. You have wandered into a perfect example. This scale also shares a lot in common with the Riverstone gauge. It would not surprise me if the internal mechanism is the same. The Pro-Ject is another example. Ortofon might tell you that theirs is "selected" for better tolerances which is doubtful. I have an Ortofon DS-1 which I am sure I overpaid for. It only reads down to 10ths which is also not good enough for the Gizmo.

The 49 dollar one available on music direct. Not sure of branding, but it works well. Have the shure scale, but put away....

I have an old Bib mechanical gauge and an unbranded electronic gauge. Both work quite well.