Hi ttt,
I got a vac hanger and a bib starter one year ago.
I started using the bib, but like some others, I had some conditioning and twisting problems, and some numbness.
After two weeks I switched to using the vac hanger, and used it primarily for six months. I kept reading bib’s forums and experimenting with my bib technique.
After six months of primarily vac hanging, to get fatigue, I was starting to need to use weight that was causing glans problems. Even with different taping/wrapping/constriction sleeve methods, my glans were having a rough time with fluid buildup and blisters.
At that time I switched back to my bib. Fortunately I think I had become more conditioned over the six months and my technique and wrapping had improved. I did not have any numbness or twisting issues, and have not had any since.
Two months ago I bought a second bib, this time getting the hardcore starter. It is by far my favorite hanger. I find that I need less compression to get the same grip. It feels more precise and solid than my starter.
So that is my history with hanging. My opinion is that while I found the vac hanger useful, my bib has been, and will be, my main tool for hanging gains.
I liked the vac hanger because it was easy to do, I could hang for long sets (1hr) and I think it improved my EQ. However, after a period of time I felt that I had exhausted the gains I could practically get from vac hanging.
On the other hand, with the bib, I feel like as long as I put the time and work into my hanging, it will help me to continue to slowly but surely pull gains out. This is where I am at now.
I think in the future, once I have reached my length goals, I might go back to some light vac hanging. As Para-Goomba said, you get a stretch throughout the length of the penis, which feels good, and I think this might be good for EQ.
But for now, I will continue doing the hard work with my bib hardcore starter.
-aws