It seems pretty logical if you stay on for years, what ever dose your taking, your body would adapt to that as the norm and adjust alot things to that level. I can see how when you come off and you go back to normal t levels, or even not so normal, you might feel like shit when your body has been getting 500 plus mgs/week for years.silverbackn said:If you stay on long enough you won't ever regain your levels. Look at Flex Wheeler. Ya, ya, I know, that's only one guy. BUt most of the people who are on for years and years never get their natural levels back. Whatever you decide good luck. I just don't think it's justifiable unless you are a serious competitive bb'er.