I'll give you my response from a similar thread I replied on....
It's ALL genetics. Some people naturally produce bigger loads than others... just like some people can lift weights and build muscle much easier than others. You can alter your production by doing certain things, taking certain supplements, foods, etc. But you will never produce loads like Peter North if you don't have the genetic predisposition to do so (unless you take some sort of chemical drug... and even then if Peter took the same thing you'd never be on par with him because he would already be ahead of you genetically).
It's ALL genetics. Some people naturally produce bigger loads than others... just like some people can lift weights and build muscle much easier than others. You can alter your production by doing certain things, taking certain supplements, foods, etc. But you will never produce loads like Peter North if you don't have the genetic predisposition to do so (unless you take some sort of chemical drug... and even then if Peter took the same thing you'd never be on par with him because he would already be ahead of you genetically).