Perhpas the body has not adjusted to it? I find the natural spikes are higher before stimulus. Girls, before you lift something, etc. MUCH MUCH HIGHER. However, it may only be because of his not taking very long, the body has enough already, and so you don\'t get the spikes...Until the body perhaps has stored it in the body, as a form of DHEA-S? And before the body has adapted, and/or built up a tolerance?

Bart