Honestly coming off trt the last time I had to HCG did not recover me, I was shut down but clomid helped me get back on my feet although i still needed trt to feel good again.
The thing is though I ran HCG for a long long time for a year straight while on trt as per doc. So maybe it just lost its effectiveness.
Clomid sensitizes testes and therefore would make hcg work again though.