(Picture) Why do I Get 2 Completely Different Measurements With These Rulers?

The thick one measures 16,2-16,3 cm BP and the other one 16,7-16,8cm BP. I use them facing sideways so the ruler won’t slip under the pubic bone. Also I’m aware that one has a 1cm in advance but I add it on later.

And which ruler do I have to believe? I always used the thinner one but now I’m afraid that one is not as reliable as the other.

Thoughts? Am I missing something stupid?

Buy a third ruler and go with the two that agree.

You’re worried about a couple of tenths of a cm? When that happens to me I go get pizza!

It’s the width. They hit the pubic bone at different heights.

Pick one and stay with that one.

I’d pick the one that says more.

I’ll go with that. The pubic bone - or at least mine - is curved and has a radius where my shaft comes through. A narrower ruler would show more length.

Hmm. I normally measure with the ruler turned edge-on, with a metal slider to contact my glans. My fat pad was so thick I didn’t have to worry about the ruler sliding down between the shaft and pubic bone. But I’ve lost enough fat pad I need to start measuring the other way.

Also, make sure you don’t have one of those "Far Eastern Import" rulers with markings like these tape measures:

Can’t we say China?

Thanks guys. That all sounds pretty clear, must be the thickness. I always measured with the thin one so my gains so far are accurate but the only thing that matters for me the most is NBPEL when I quit PE. That has to be the same for both rulers.

In the end it doesn’t matter. What you’re attempting to measure are gains. If you stick with the same ruler and the same method of measuring you’ll measure gains even if the scale you’re using doesn’t match others.

Choose one ruler and use it all the time. Record measurements with the ruler bone pressed both horizontally and vertically. They will differ some. Measure often so you become good at measuring. The change is what matters. I could reliably tell 1/16" difference when I was in practice. I’d usually get 1/16" to 1/8" difference between pre and post PE session change in BPFSL. You become quite good at measuring when you do it every day with the same ruler using it the same way.

Some genius here should invent the Ultimate Cock Measuring Ruler, 3D print it, then sell it. He could become a hundredaire.