What's the difference between clamping or pumping, a cable clamp or a
cock ring. They essentially all do the same thing, hold blood in the penis, A Cable Clamp is adjustable, which can give you more control and quick easy release, same as a Penis pump. A cock-ring that is one size is harder to remove if too tight.
I read both Clamping and Pumping are dangerous, which they are. So is handling a loaded gun, when you don't know what you're doing with it. You can get carried away doing Clamping and much as Pumping with too much internal pressure and rupture blood vessels and the CC chambers if careless with the timing and pressure. The
SRT Girth system uses the
5x5x3 technique to alleviate that danger, the same would go with doing clamping.
I read
The Boa Constrictors Guide by RedZulu2003. Its' method is primitive and was very effective for
@REDZULU2003. As with any type of exercise, you must do your due diligence, slowly become familiar with it , take precautions and heed to the warnings.