I've posted some stuff from William too, there is almost always going to be multipe schools of thought so why not hear from all sides. Some people still taper, even though we've seen how easy it is to suppress the HPTA, people still do it.
I'm not about to compare myself to him either, I just dont agree with his theories based on my own experience, at least in terms of HCG. Same with BigCat, really smart guy, but it doesn't mean I'm going to swallow his every word.
It is not normal to include B-12 but I know of Gonakor.
I shoot SubQ about 1.5" to the right/left of the navel, but I used to do IM all the time.