Ron Hill Signature 12x22 pitch measuring

My measure shows same pitch as pitch gauge.
FB: Huuhka Racing

[@amgluk]

Nice to see that somebody is using a level for the pitch measurements. Don't forget to apply a correction factor considering the difference between the measured angle and the angle of the development plane. czcams.com/video/lK8ggLJtdFc/video.html

[@Audis667]

You have wrong measure. Need measure without interceptor.

[@HuuhkaRacing]

I have measure this propeller also pitch gauge and pitch is ~20P.
Ron Hill has stamp wrong pitch.