*edit* I also wanted to point out that taking into consideration ester weight 500mg is right about 2x your natty test production. Going past that and say running a gram = about 4.5x natty production BUT how much can bind to the AR? What happens to the rest? Aromatization? These things are overlooked so say you get into the 2 gram range now close to 10x the normal production do you think you will grow like you are getting 10x your normal test? Hell no... you will get wicked sides BUT that depends on the persons genetics, size, workout routine, even diet and the list goes on. Just because the "pros" do it doesn't mean I can. I respect them and how hard they push their bodies as well as the risks they take (they know them) but I highly doubt I will ever consider running those doseages. I like my low dose test and high dose Tren for short intermittent bursts.