I have a theory. I think if one is endomorphic or mesomorphic, he has a better chance of getting gyno from a cycle than if one is ectomorphic. I have tons of friends that have used AAS and the only ones that got gyno started out meso or endomorphic. I started off ectomorphic, 5'8 145 pounds and I can take almost a gram of test per week and still haven't gotten gyno. I read somewhere that just because you don't get it from one cycle doesn't mean you won't get it from another, so maybe it's just luck. I also don't get side effects nearly as bad as most of my friends, such as rage and hair loss. Does it have anything to do with immune system? I suppose one has to understand the biology behind gyno and about the test/estrogen balance to know for sure. Just a trend I've noticed, thoughts are welcome.