I agree with you except for the fact that as we age the body seems to like to slowly age and shut down on us unless we do some kind of intervention.... I'm just not sure that we have the knowledge and tools to do the perfect job yet.
Here is my 'theory' on the subject, just from reading and personal experiences, and may or may not be correct, but I am thinking that in cases where the testicles are still able to produce enough
testosterone, that
hcg is useful in providing a 'bridge' to get off of
trt more naturally.... so running
hcg for a week or two will allow the
trt to clear and also will restore many other natural hormonal pathways. With hcg you are not doing anything to restore the hypothalmus or pituitary function though, so you must stop the hcg and use SERM's which stimulate and affect the hypothalmus and pituitary. I think the biggest problem with HCG is the spikes and valleys, which is still better than
trt but getting natural pulsatile LH production going is still by far the best option if at all possible.