For the HCG the common method is to run 250ius 2 times each week starting 3 weeks into your cycle. This keeps your balls big and producing your own test so when you start PCT they don't have to play catchup trying to grow back to their normal size.
If you have not read it yet check out Needto's Steroids 101 sticky thread - great reading.
If you have not read it yet check out Needto's Steroids 101 sticky thread - great reading.