4 2*30 minutes pumping with new pump and 2" cylinder
This is my third week with my new pump and a 2 inch cylinder. I have now continued to use it and it works very well for me. I have had the opportunity to have several 2*30 minutes sessions, and one thing I have noted is that after the first 30 minutes it is very easy to get really hard outside the cylinder during the break. But after another 30 minutes my penis seems to get tired and it is harder to get it very hard and keep it that ...

More with new pump and 2" cylinder
Previous week I bought a new pump and a 2 inch cylinder. This week I have continued to explore and enjoy it. I have also posted a photo in my vacuum pumping album of my penis inside my new cylinder, link to that photo: http://www.pegym.com/forums/members/...ng-5-inhg.html.

* NOTES for week ...

New pump and 2" cylinder
This week I bought a new "Mr B" pump and a 2 inch cylinder. I was starting to get very close to the top of my first pump, a couple of more millimeters and then the top of my penis would be at the small hole where the air is pumped out. I suspect that it would not be a pleasant experience to get the skin sucked in there...
The new cylinder does not have a silicone sleeve at the base, when I pump it fits very close to the base of my penis and I get ...

Progress table for 6 inHg

The previous week I listed in-cylinder length at the end of pumping session at 5 inHg that lasted 10-15 minutes. That was interesting I thought, so...

In the table below I have listed the in-cylinder lengths at 6 inHg at the end of each session.
I have included continuous sessions where the pressure mostly has been at 6 inHg, but not over that pressure.
I have not included longer sessions that had a pause in the middle.

...

5 inHg pumping progress summary (and short 8 inHg)
When I first started pumping I took it easy and pumped at 4 or 5 inHg for about 10-15 minutes. But after the initial period I have mostly pumped at 6 inHg, except when I have had the opportunity to have long sessions for 30-60 minutes, then I have usually stayed at 4 or 5 inHg.

So now I thought that it would be interesting to do a short session at 5 inHg and compare the in-cylinder length to the previous notes.
It is apparent ...