Cock And Ball Pumpers

I would like to know if there are any of you out there.

According to Kaplan’s manual the addition of a cock and ball pump along with normal pumping increases gains quite a bit. My guess is that the cock and ball pump is pumping’s way of stretching the ligs more then the normal cock cylinder does.

Anyway so is there any one out there that uses both cylinders on a regular basis and has got gains to talk about?

I have both cylinders but only used the cock cylinder and I’m wondering if that is why I had little length gains mostly only girth gains. I know people have gotten gains without using both cylinders but I would like to know who has gains that uses both.