What I recall hearing was that all the advantage, if any, was in injecting it.
As for Jeff Summers, he must be doing financially very well for his age, but I think he is full of it. I especially like his advertising that he gained around 4" on his arms and dropped massive bodyfat in 4 weeks using his own legal supplements.
He could have held up a copy of USA Today which is standard, to even make believable the 4 week claim which itself is very, very hard to believe.