I don't get your first paragraph though. how does hcg restore HPTA? it suppresses LH and FSH. SERM's will temporarily boost them but then you crash back down.. i think the OP is on the right track. I do agree with running hcg as a kickstart to pct to get T levels up
I never said HCG restores HPTA, but it does mimic LH which give your body a head start on producing testosterone on its own.