That is average genetics?
You are IFBB pro who has built a ridiculously well proportioned physique on 300 mgs of test as your highest dose (correct me if I'm wrong). Do you really think that is something an average person can achieve?
You are a wealth of knowledge, and have probably forgotten more about bodybuilding than most will know. But you are also a genetic outlier, combine that with a great workethic, and patience = Emeric Delczeg
Steroids no steroids; I think the longer somebody does this, the more they'll come to the understanding that no pill, injection, training technique, intra workout nutrition will take you out of the boundaries of what mom and dad gave you; they will only enhance it.