Marinera, I achieved 1” in about 1.5 years, with several weeks off for vacuum damage/tension blister healing. I’d previously gained an inch by pumping.
Noneone, when I first tried the vacextender attachment, I found it very comfortable so I overdid it once and ended up with another blood blister. I never actually conditioned my glans to wear this extender because I had to give up PE for a while.
With my homemade latex sleeves, my glans constantly had a darker circle at the tip, it did look strange but it disappeared after a few months when I stopped using the extender.
Now I have been wearing it for about 5 days after a long break so I am slowly building up wearing time, the tension is set to minimum (no compression of the rod springs) and if there is any tingling sensation at the glans, I don’t hesitate to take it off and massage it. In any case I think that it is good to remove the attachment every 30mins or so to return the blood circulation.
Damage usually happened when tension was high and the sleeve slipped off the glans, unfortunately the Autoextender solution hasn’t eliminated this problem, so this time I am being very careful!
Concerning what happens to penis tissue, I believe that extra tissue is being created because my shrivelled size (when skin and not blood makes up the size) has increased a little. If the penis structure was merely stretched past its elastic limit, I doubt that the skin would retain its ability to shrivel so tightly.
I have maintained my “grower” qualities: from 4” minimum to 8.5” maximum whereas a “stretched” penis would surely have made me a “shower”.