When I wrote that article, the one on AE, I used the information that I had. You must always keep in mind that half-lives are GENERALIZATIONS. Also, I was making generalizations that are not Drug dependant, of course the parent drug and route of administration play a large role. It would be nice to see a listing of all the half lives of every steroid and it's ester.
As for studies, that half-lives are based on, we have consider that they are done on the old rat assays. Most of these assays are quite old. Check out the sutdies mentioned in Vida's book, you'll find a good deal of conflicting information, yet this is the basis for current half-lives. This is not to say that human studies are not used but, human studies, dealing with half lives, are frequently done on people, if even men, that are a) old b) have a disease or c) some sort of endocrine comprimise. Rarely do we see studies done on healthy male bodybuilders.
What we must remember, half-lives are only guidelines and can easily vary from person to person. Everything is determined by the enzymatic pathways that are created by one's enzyme profile. Take a look at someone with MPB, they obviously have a greater degree of the 5 AR enzyme. Thus this will easily change the half life of testosterone and it's esters.
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