how the hell are we suppose to know without you putting up any pictures, and stats?? i dont know if there are certain standards you must meet before being able to compete; but if you want to be the elite natty bb'er then the most common answer would be no. most people simply dont have the genetics to grow much without steroids.
if youre going to put up a document then at least give us the link and a quick summary of the main points in it.