New in-cylinder measurement method
During this period I started to measure the in-cylinder length "backwards", from penis tip to a seam at the cylinder's top which is 22,5 cm (8.86 in) from base.
Previously I measured basically the same way as I measure BPEL, but outside the cylinder. But I have discovered that these measurements can differ a couple of millimeters depending on how I am standing, especially the angle of my pelvis can make a difference.
But measuring from the tip of my penis to the seam at the cylinder's top and then doing some subtraction gives much more consistent measurements. And most often it gives the same measurement as the "old" method.

NOTES for week 82
* Tuesday: Pump, 16 minutes (8 min at 6 inHg + 8 min at 7 inHg) with cut-off crystal skin silicon sleeve. In-cylinder length 21,0 cm (8.27 in) at 7 inHg. Afterwards BPEL = 20,0 cm (7.87 in) without sleeve.
* Wednesday: Pump, 20 minutes at 6 inHg with cut-off crystal skin silicon sleeve. In-cylinder length 20,9 cm (8.23 in). Afterwards BPEL = 20,5 (8.07 in) cm with sleeve and BPEL = 20,0 cm (7.87 in) without sleeve.
* Thursday: Pump, 15 minutes at 6 inHg with cut-off crystal skin silicon sleeve. In-cylinder length 21,0 cm (8.27 in). Afterwards BPEL = 20,6 cm (8.11 in) (new highscore) with sleeve and BPEL = 20,2 cm (7.95 in) without sleeve.
* Friday: Pump, 10 minutes at 6 inHg.

NOTES for week 83
* Monday: Pump, 15 minutes at 6 inHg. In-cylinder length 20,5 cm (8.07 in). Afterwards BPEL = 20,2 cm (7.95 in). Note: Measured in-cylinder length "backwards", from penis tip to a seam at the cylinder's top which is 22,5 cm (8.86 in) from base.
* Tuesday morning: Pump, 10 minutes at 6 inHg. In-cylinder length 20,5 cm (8.07 in) measured the same way as monday. Afterwards BPEL = 20,2 cm (7.95 in).
* Tuesday afternoon: Pump, 10 minutes at 7 inHg. In-cylinder length 20,7 cm (8.15 in) measured the same way as monday. Afterwards BPEL = 20,4 cm (8.03 in).
* Wednesday: Pump, 10 minutes at 7 inHg. In-cylinder length 20,7 cm (8.15 in) measured the same way as monday. Afterwards BPEL = 20,4 cm (8.03 in).
* Thursday: Pump, 20 minutes at 6 inHg. In-cylinder length 20,6 cm (8.11 in). Afterwards BPEL= 20,3 cm (7.99 in).
* Friday: Pump, 10 minutes at 7 inHg.

NOTES for week 84
* Monday: Pump, 15 minutes at 7 inHg. In-cylinder length 20,6 cm (8.11 in). Afterwards BPEL= 20,4 cm (8.03 in) and some fluid swelling below glans underside - did forget about the time, was just gonna do 10 minutes.
* Tuesday: Pump, 20 minutes at 6 inHg. In-cylinder length 20,6 cm (8.11 in). Afterwards BPEL= 20,2 cm (7.95 in).
* Wednesday: Pump, 15 minutes at 6 inHg. In-cylinder length 20,6 cm (8.11 in). Afterwards BPEL= 20,3 cm (7.99 in), MSEG = 13,7 cm (5.39 in) and BEG = 15,9 cm (6.26 in).
* Thursday: Pump, 15 minutes at 6 inHg.
* Friday: Pump, 15 minutes at 6 inHg with penis ring. Afterwards MSEG = 13,9 cm (5.47 in) with ring.

NOTES for week 85
* Monday: Pump, 15 minutes at 6 inHg.
* Tuesday: Pump, 20 minutes at 6 inHg. In-cylinder length 20,6 cm (8.11 in). Afterwards BPEL= 20,4 cm (8.03 in).
* Wednesday morning: Pump, 10 minutes at 7 inHg. In-cylinder length 20,7 cm (8.15 in). Afterwards BPEL= 20,4 cm (8.03 in) and MSEG = 13,8 cm (5.43 in).
* Wednesday noon: Pump, 10 minutes at 7 inHg. In-cylinder length 20,7 cm (8.15 in). Afterwards BPEL= 20,4 cm (8.03 in) and MSEG = 13,8 cm (5.43 in).
* Wednesday afternoon: Pump, 10 minutes at 7 inHg. In-cylinder length 20,8 cm (8.19 in). Afterwards BPEL= 20,5 cm (8.07 in) and MSEG = 13,8 cm (5.43 in).
* Thursday: Pump, 20 minutes at 6 inHg. In-cylinder length 20,7 cm (8.15 in). Afterwards BPEL= 20,3 cm (7.99 in) and MSEG = 13,8 cm (5.43 in).
* Friday: Pump, 20 minutes at 6 inHg. In-cylinder length 20,7 cm (8.15 in). Afterwards BPEL= 20,3 cm (7.99 in) and MSEG = 13,8 cm (5.43 in).

Note: All pumping these weeks done with my "Mr B" pump and 2" cylinder. See photo in my album.
In-cylinder lengths are measured with a ruler outside the cylinder.