The reason to use HCG is not to being kept from being shut down, it's used to keep you nuts, size so you don't experience Testiclur Atorphy, During a cycle.
Sorry Briweve, if you are taking any AAS that inhibit the HPTA, w h i l e taking HCG, your testicular axis will still reduce in size. Unless your taking real conservative dosages on real conservative cycles, all I've ever read is that after a long cycle, l i m i t e d use of HCG will bring back your testicular axis. While you have a suppresant in your system, it won't work properly. Like solidspine said "a waste of time and money."