Fulcrum hanging

I also have a question. I made a rsdt and hung with it for a while. I feel a sharp pain on the underside of my penis. It gets more painful as I hang more weights. I can’t reach the point of fatigue before the pain becomes unbearable.

Anyone experienced the same thing or can tell me where am I going wrong?

I’ve felt it. Its usually the way the skin is rolling over the bar. usually its bunched up, when that pain starts reset the position of the penis and keep going.