I can't add anything to discussion about half lives, but have to point that :
- what is strored in fat cells, steroid itself, or its metabolites? even if it's steroid itself, I doubt that it has a chance to bind to AR, so the storage fact is irrelevant for our discussion;
- in fact most of the enzymes, with a few exceptions work one way, DHT can't convert to testosteron, but it does get converted to androstanediol;
- when we talk about half life, we are talking about active chemiquals, not residue or stored metabolites
- interesting study, but one study doesn't prove anything, we need to look for more