has anyone ever done a primo only cycle? if so what type of results could be expected? Most of my cycles I keep around 500-600 mg's per week, I get pretty good results at that dosage and can normaly maintain almost all the lean mass i gain. I'm thinking about doing a primo only cycle at 600mg's a week or 300mgs of test + 300mg's of primo. I'm bulking but I want to gain as much lean maintainable mass as possible, the goal is a solid 10 pounds in 10 weeks. what do you guys think I should do? all primo, or test + primo?