Phil Heath is his client, so that gets him a lot of credibility.
If I recall correctly, his FST-7 protocol is based on injecting test suspension, increlex, and one other compound--insulin i believe-- in the muscle about to be trained.
Phil Heath and Jay Cutler---Phil from possibly 2005- 2006 (maybe earlier?) and on, and Jay from ? To like, what 2011 or so.
People see that and say, "well obviously he knows what he's doing"
Thing is, if you see Phil from when he began competing, you can tell he was "something special" so he could have hooked up with Chad, Joe McNeil, or Aceto and it would have probably been the same results. Him winning the O.