I have a totally different method of pumping for PE that makes it impossible for me to fuck right after. I totally disagree with guys who pump to produce the edema swelling effect. Totally unappealing and spongy.
And not to mention possibly damaging. I like to keep a tight, well fitting tube - hydro-pump and loads of heat to help maintain some elasticity. I am experimenting with a stainless bearing loaded at the tip of my glans with a circle of surgical tape to hold some of the shaft skin in place, or pump a donut - want to go for partial coverage with a faux foreskin someday.
It's working, somewhat for me in that when umpumped, relaxed and totally "cool" - I at least have a little wrinkle over the frenelum now, with a "slack skinned puppy" feel when erect. That bloat is GOOD for one two things...1) Show. 2) If you are working on building girth - you'll eventually "grow" into that size with gentle persistence.
At any rate, my way of pumping has made a huge impact on my girth. I'm still finding the holy grail of length though.
If you have a range of cylinders that you grew into, try this:
Use your smallest cylinder that still fits your unpumped erection. Use moderate pressure and heat with plenty of emollient based lube (try to not use mineral oils) until you pack it tight. The idea is to bulk up without too much of a stretch-out. Then try your next diameter tube, again moderate pressure and heat until you pack it out firmly, wall-to-wall. Jump out of that tube, massage in more of your fave lube and get a good, stone hard erection going and then go back to your smaller tube.
Go a bit heavier on the lube to allow you to extend into the tube, and also facilitate backing out, or you might have to reverse your pump to blow yourself out. ;> But this time now- work up to a moderate pressure - then when you are totally packed and not dropping so quickly on the vacuum gauge - take the vacuum up to the edge of your own comfort. Try to get an hour of time at this max comfort level taking 10 to 15 minute breaks to massage and keep things lubed. With heat and maximal pressure after a good, girthy pack - sustained vacuum at the edge of comfort will see you reaching for the other side of the tube before long. Mixing in other techniques helped me in the past as I was not an "easy gainer" after my honeymoon period.
MODERATORS: If necessary, please move -> and note this comment to PE forum if it is more proper there. Apologies to the women of the Lady's Issues group. This is probably TMI to the Nth power.