The obvious problem with this if it actually worked, you would need a new tube every two weeks. Maybe if you could make a liner inside the tube that could act as a restraint. Then you would only need a new tube every few months.
You see I want these things to work they just don’t.
Jelqing, stretching and squeezes work and they cost nothing.
I think that you should not pump, deadeye. Instead you should jelk, stretch, and squeeze and get your best shot from those exercises, leaving the pumping to the pumpers.
In another post you said pumping only made your cock purple. That doesn’t seem to happen to many guys who post to the Pumper’s Forum unless they overextend their duration in their tubes.
There are all kinds of ways to do extremist pumping and a whole lot of sites that tell one exactly how to accomplish that. Here we are trying to refine methods that give gains without wearing a penis out because we all want good erectile function to go along with the penises we are modifying upwards as to size.
You do need to read more here, I think, before trying to throw a monkey wrench into a process that has worked for so many.
I agree totally that abuses though a not-well-thought-out pumping program do occur, if that is your point.
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avocet8