1 gram of primo a week would kick ass, with and androgen such as dbol. I ran 600-700mgs of primo a week with a signle anabolic(cannot remeber which one, it was a few) for a while and the results were very good. I remeber using 500mg of primo and 400 mg deca a week, felt awsome on that except I had to shoot EOD. All were 100mg/ml.