I've used it a few ways. I liked it best with a short, 1 or 2 week blast, every 4-5 weeks; and then a longer blast, 3-4 weeks, starting about 4 weeks from the start of PCT. Then discontinue the hcg a few days before the start of clomid. The first two weeks would be 250-500 iu eod, and then the next two weeks would be 500-1000 iu. eod, and ed the last couple days.