HCG is more important than the PCT meds.
It is used DURING cycle, not during PCT.
U should run about 500IU-1000IU PW, it can be done in 1 shot or 2. (However it can raise e2 if u shoot 1000IU at one given moment)
Hardest part in PCT is to recover testes size. If they never shrank in the first place, then it's much easier on your body and u will recover much faster.
I personally shoot 250IU e3d since I began AAS. My testes are good size and normal.
If I choose to recover from B.C, then I'll blast HCG in ratios of 2500IU at a time EOD and then hit up the clomid/Nolva stack.