I usually pump with very very low vacuum pressures so I do not get the donut effect and I have found that if I warm the penis up a lot with hot water before pumping I can pump longer before I start getting the donut effect. I can increase the vacuum pressure a little more with the inner tube but it doesn’t allow the penis to gain more length and it takes too long of a time to build up the girth. I rather pump with low vacuum pressures and get a bigger girth and get more length in one shot, and I do not have to worry about the donut effect setting in too soon that way either.
All The inner tube thing does is make it where you do not get the donut effect too soon. And it might “I think will” hinder lengthening process and the girthening process because if you have an inner tube strapped to the tube and your penis is inside of the inner tube it will like hold your penis so it will not get more girth or get longer. So I do not see why anyone would want to use an inner tube. I do not see how it could work. All I can see that it does is take longer to get the donut effect. I can do that by warming the penis up a lot with hot water and pumping with very very low pressure.
I think I will stick to my routine. It works and I do not have to worry about a piece of rubber holding my dick so it can not get bigger in girth and/or length
What dummy came up with the inner tube thing.
I don’t think they thought it through before doing it?
Do you know how well rubber grips stuff with or without lubricate?