If you insist on using primo I would definatly run it with test. Primo seems to work well when your on a cutting cycle and your on a low calorie diet it seems to make guys I know very hard with other drugs. But to take it and not diet I dont think you would see much from primo it is very mild. Also the it costs alot more than other drugs. I would say you would need to run atleast 600mg of primo a week that gets expensive.