I believe Nitric Oxide will benefit PE. If it increases erection size and hardness, it should help overall gains. For you clampers out there, try taking Viagra, other libido enhancers, or Nitric Oxide while clamping. If the idea of clamping is to build great pressure within the penis with the effect of permanently enlarging it then anything that helps build more pressure for longer periods would help.
I am also thinking of including the hormone Relaxin with Nitric Oxide and clamping. See my post in the Experiments section:
PE COCKTAIL — Relaxin, Glucomasine, and Nitric Oxide