Yeah, he's time pressed / lazy and doesn't do the freeze precip. I suspect that makes all the difference where xtals are concerned. He doesn't care, the goo is more or less exactly the same in effect.
I think the alkaloid content can be very variable. Certainly, whenever I've done side by side TLC tests on his product, for equivalent weights MH has always had more DMT and less NMT than AC. See the pic below:
col 1 - MHRB
col 2 - AC
col 3 - MHRB
Exactly same extract tek used (although col 1 used a different solvent to cols 2 & 3). 5mgs of each substance. The MHRB (in this instance at least) seems to have more DMT / less NMT than the AC. This is more or less inline with all the extracts he's done and I've tested for him.