I think you should check out Skip LaCour's website.
Regardless whether you believe him to be natural or not, his dedication and planning is something to aim for, and possibly trying to better.
With that being said, you would probably be better off aiming for a contest in early October.
And yeah. I think you're doing the right thing staying natural. I won't go into any moral issues, but from a completely rational viewpoint, you're most likely better off holding off any decision regarding goin on or not for a couple of years.
Check with some of the drug gurus of this board if you want. I have no experience of use myself.