Most of my info came from Hv's forum. Lots of stuff there on TMG, including links to good articles. Here's the search results:
Read a few threads and you'll be up to speed.
No results to report at this point. One thing I would do differently, though--I would not buy the cheap stuff at purebulk.com, which I did. First thing you notice is that it comes from China, so God only knows what's in it.