First goal reached!
One evening at the beginning of the week I had more time than usual for a proper pumping session. So I pumped first for 15 minutes at 6 inHg (with the usual cycling down to 0 inHg), then I took a 5 minutes break with some massage followed by another 15 minutes of pumping.

At the end of the pumping I was very pleased to see the tip of my penis reach that 20 cm (7.87 in) marking on the cylinder's scale. Finally!
Very satisfactory to be able to look down at my penis and be able to think to myself "So that's how it looks to have a 20 cm cock." "And it's my cock!"

Directly after the total of 30 minutes of pumping I measured my penis and this was the results:
BPEL 19,6 cm (7.72 in)
MSEG 13,6 cm (5.35 in).
BaseEG: 16,0 cm (6.30 in).

It felt really good in my hands to have a cock that large, both longer and thicker than usual.
So now I am really looking forward to my next goal: To have a 20 cm erection directly after pumping. Then follows a BPEL of 20 cm on a resting day, followed by NBPEL 20 cm on a resting day.
Hopefully girth will follow. I have had less success with girth than length so far.

After this good start of the week it continued with 2 sessions of 10 minutes, 1 session of 15 minutes and 1 session of 20 minutes. At the end of the 20 minutes session I was very close to reach the 20 cm mark again.