You mean what are the techniques available, or the one who works best for me?
Edit: I see. I have tried pretty much any technique. I could start another long argument with a lot of people here because I have a very personal point of view on girth gains. I think most of girth gains are due to lymphatic accumulation. I mean not the kind you can see at bare eye, but more ‘hidden’. That’s why girth gains tend to disappear. So I much prefer techniques that gives little girth gains on the moment, but more ‘stable’, if you get what I mean gains you see are less due to fluid accumulation.
My preferred technique is dry jelq. I have tried a technique (pretty dangerous though) that could be called ‘mechanic dry jelqinq’. It is basically hanging unwrapped with a AFB hanger, placed very near the base.
I have also tried horse440, and I think they have great potential for BG gains; they are the most dangerous thing around though.