I don't want to turn this into a PE forum, so I'll just say I learned most of it on a subreddit called gettingbigger. But a brief primer on pumping:
I usually pump with a LeLuv air pump with a heating pad wrapped around it or in a tub of hot water. To grow permanently, it's helpful to do less time in the pump than what I usually do, and best to do it no more than every other day. But if I want to be really huge on a particular day, here's what I do: I start off with a cylinder that's barely thicker than my cock. I get a full, throbbing erection and then go into the pump. I do 2-minute intervals until I'm stuffing the entire cylinder. An interval is pumping up to a decent pressure, like 5 Hg, and holding it there for about 2 minutes, maybe reverse kegeling and/or moving the pump a bit to keep continuous stimulation, then releasing all the pressure and pumping right back up to the same pressure. The process of stuffing a cylinder gets easier after a lot of practice - your dick gets conditioned to it. Frankly, I probably wouldn't even pump up to 5 Hg for the first few sessions. You might hurt your dick doing that. But I've been conditioned enough for over a year now that I can safely go up to about 10 Hg sometimes. It just took a month or so of consistent pumping to get there. But I find that usually my penis feels best, strongest, and most natural if I spend most of my pump time between 4-7 Hg, personally, so more vacuum isn't necessarily best. Once I'm packing that small cylinder, I move up to a larger cylinder and repeat, wearing a sleeve near the top of my dick so I don't end up with a donut head. Then I move up one more time to a bigger cylinder, although typically I stop before I fully pack the last one because I usually don't want to be over 7 inches in girth but the biggest cylinder will leave me at about 7.1-7.2 inches if I pack it. When I've decided enough is enough, I take off the sleeve and do another 2-4 low-pressure (for me, 3-5 Hg) intervals in the bigger cylinder just to kind of even out the girth near the top of the shaft so it feels like a natural dick instead of a misshapen mess.
And that's how my wife gets her sausage made.
