I will be running the following cycle in the next couple of weeks

Week 1-9 100mg Test a ED
Week 1-8 75mg Tren a ED
Week 1-8 100mg Masteron ED

I have just came across some Proviron and was wondering if/when i should use it. I have heard some people say take it during the cycle to clear receptors and I have heard some say for PCT. Any thoughts? If so how much and when?

Cheers guys