The key to control of any expansion issue when using vacuum, is always 'restriction' in some form, be it in the shape of the cylinder or in this case, restriction of a certain tissue area to help retard it's engorgement, slowing it down so that it is in more correct proportional growth that better matches other surrounding tissue regions.

Unless you are particularly wanting to try and use pumping to work at what's generally referred to as 'foreskin restoration', the bulbous enlargement of the foreskin area of the penile shaft due to it's faster rate of engorgement tends to be considered unsightly, and unwanted by most men. Here's an easy and inexpensive method of putting an end to this problem.

In restricting the foreskin tissue area, which due to it's different tissue design does engorge at a much faster rate, what you are doing could also be considered (and maybe more aptly referred to) as 'bolstering' or increasing that region's resistance to vacuum, and it's relatively simple to do:

1. Take a condom, and cut off the reservoir tip, leaving you with a latex 'sleeve' or tube, open at both ends.


2. Starting at one end of the condom, begin to insert the penis, stopping at the back/near edge of the foreskin area, then beginning at the front/far edge of the foreskin area (right behind the rim of the glans) lap the sleeve back over itself to the starting point, then reverse again, etc. back and forth, creating in effect a wide 'rubber band' which covers the foreskin region of the penile shaft. Normally 3-4 laps thickness is about right for most men, and a good place to start.


3. Lubricate yourself, mount your cylinder, and begin a pumping session as normal.

The condom band will provide the foreskin area with the extra resistance to the vacuum force needed to slow it's rate of engorgement down, and bring it more in line with the rate of engorgement in the primary shaft tissue. A little 'trial-and-error' adjustment can then be quickly determined, and making any adjustment of using more or less total laps of the latex condom tubing, further increasing or reducing the amount of resistance necessary to make the engorgement rate of the foreskin region match the main shaft's rate. (if when using the condom that region doesn't expand as much as the rest of the shaft, reduce by 1 overlap and re-try, vs. if the foreskin area still out-paces the main shaft increase the number of overlaps by 1-2 and do a session test for new results.)