I’ve gained about .75 inches in girth over many years of pumping. I have been pumping for about 8 years. I don’t jelq much, but I do try to in between pumping sets, and in the shower.
I use a 1.75 inch diameter cylinder. When I started it would take me about an hour or more to pack the tube. I think I was about 4.75 ” girth.
Now I pack the tube just a couple minutes after I start pumping. I am now 5.5” girth and maybe more. I haven’t measured lately.
Between pumping sets I will do 30-50 jelqs, then work up an erection. Then I will do manual clamps and squeezes to inflate my erection.
When I go back into the tube I can barely fit inside.