Visual length = length of the shaft

Have you noticed this phenomenom. If you cut out glans from penis photo the penis doesn't look any shorter. And if you have two same length penis but other have 2" glans and other 1,5" glans, the one with shorter glans looks longer. Shaft to glans ratio is bigger.

8" penis is 33% longer than 6" penis, but 8" penis shaft of 6" is 50% longer than 6" penis shaft of 4"!

Shaft to glans ratio (STGR)
Average 5" nbpel (6" BPEL) penis that has 1,75" glans and 3,25" Shaft has shaft to glans ratio 1,86. A little under 2 and it looks short as shit. I have npbel STGR 2,0 and it looks short too. BPEL STGR 2,64 and it looks way better. I just pull out of my ass number 3,0 as gold standard of nbpel STGR when it surely looks good length. 3.0 or bigger ratio.
Example:
8" npel with 2" glans
7" nbpel with 1,75" glans
6,5" nbpel with 1,62" glans

I started to take measurements of shaft only leaving glans out. It is very accurate too to measure to the edge of coronal ridge.

This is actually quite interesting. Amazed you took the time to think about this and do some calculations.

It's true, when your head is 33% of your entire penis length it will LOOK shorter. My head has always been about 2" long. When I was 6 NBP, before PE, it did look very short.

Now at 7 NBP, it's barely getting better...... It won't be until I hit around 8 NBP that this visual phenomena is taken care of.