I think I have a super tough tunica, starting out I am 6 to 6.5 girth. I probably jelqed pretty regular for a year. I tried water pumping. I have a 9 x 2inch cylinder even with my girth I only pack the first 2 inches of the cylinder, I rarely get lymph buildup. I generally keep the pressure around 7hg for 30 minutes but I have gone as high as 10hg. Anyway I tried water, 3 days a week for 30 minutes for about 3 weeks until my pump broke. No noticeable difference. I will continue to do it. I got my new pump today I will try to do it 7 nights a week, and add a saturday and sunday morning. I like the way it feels vs just the air.