Depends on the guy. Average range is usually from around 200-800 ng/dl. You can have one guy at 500 and have him feel worse than a guy at 250 though, if the 500 guy used to be 800. As long as you get back to the range you were before cycle you should be fine. And their are always freaks, like my dad. He's 52, has a test level of almost 1000 naturally.