Girth Maxed Out, Then More With Clamping

I was wonder if their are any veteran PE’s here that have gained the regular 0.5 inches in girth erect and couldn’t get anymore in girth size; then tried clamping and found that it helped them start increasing in girth size again?

How much more did you gain from clamping and how long did it take?

I was thinking of trying clamping instead of Jelq because I haven’t gotten any any gains at all from Jelq. I originally got my 0.5 inches in errect girth through hanging and I am hoping clamping will help me get more, but wonder if their are others who have gotten gains after a 0.5 inch gain in girth already.