Read an interesting article on a failed trial of this. It was cut short because of the relatively high incidence of side effects (only 10%, shockingly...read on.)
A key point jumped out at me:
"Every eight weeks the men were given a testosterone injection..."
Jesus, no wonder they had terrible side effects. Their T probably went from 2000+ to near-zero every 8 weeks. No wonder they were miserable and the trial was cut short. Almost anyone on this board could have predicted that. Why do medical professionals do such foolish things? It's almost as if they were out to disprove the concept!
Personally, I'm interested in this concept since I'm already on TRT. All it would take is dropping HCG, or maybe just using it occasionally to maintain some function (and using a backup method for some period of time afterward). It is of course a compromise, I'm not willing to accept total atrophy or even the risk of future fertility being compromised. But I may come off the HCG and test my sperm.