are you talking about 3G a week or 3G over the 2 months? you're progress depends on more than your test levels anyway. your diet is the biggest factor and then there is the work you're doing. I think what you're wanting to know is how long would it take to get the same results naturally that you can in a single cycle of AS. again that depends upon alot of things other than test levels, but all things being equal in most cases what you can achieve in a cycle of test is equivalent to what you can achieve in a year naturally according to most sources. again there are alot of things to take into account and from my experience psychology is maybe the most important. when you're on AS your drive is up to a level you can't really duplicate naturally. when your test levels are up like that you're psyched up and more aggressive. even if you could bring that kind of intensity or close to it naturally your body won't be able to keep up with it for long and you will over train.