I find a good pump session before clamping really helps my expansion and also helps to stretch the outer skin. I wonder if some of the afterburn lotion you can get for sun burns would help to loosen up the skin and help prevent stretch marks. After I pump and start to clamp the outer skin is extremely tight. Would be nice if it were to loosen up a bit as I believe it would allow more expansion and more girth.
I tried it yesterday with alovera gel.
Only issue was the pump donut was then added to by the clamp donut to give 6 inches of girth donut! Well at least I know what 6 inches look like! 5.5 will be fine for now, currently 5.25 at Max erection.
Interestingly I got to 5.75 girth while clamped and super tight skin, but! When I released the clamp I measured 6 inch girth. So I am theorising that the length tightness of the skin is restricting the girth?