I have seen a multitude of different opinnions on the usage of HCG with regards to an AAS cycle. The two main options appear to be either on-cycle or for PCT.
I have heard many say that using a low to moderate dosage while on-cycle keeps the testes inflated, so that when PCT rolls around they do not need to recover as much.
Furthermore, I've read that HCG is suppressive, thus PCT usage may further the required length of PCT.
However, almost every book I have opts for HCG in high dosages only during the PCT phase.
If anyone can further contribute to this conundrum, with regards to the most optimal time to use HCG, I would love to hear from you.
On a side note I've used it while on-cycle, but I am debating about switching to strictly PCT usage.