Well, first of all it not dried cows blood! But it is of a bovine source.
As far as the discount stuff...ain't my area. I'd encourage everyone to call PF if they have questions or requests. I know nothing of sales.
No one is claiming it's more anabolic than testosterone. The point is, steroids can't make muscle out of nothing -- they need protein. This is a protein source that have been proven to generate more growth than other protein sources. That's pretty huge IMO. The trouble is, the stuff is insanely expensive -- 43 bucks a pound -- and that's with virtually no mark up. And by itself, it would not taste wonderful. There's one other company using it but the actual content of SDBS is less than 2 %. BIG BLAST contains 10% SDBS plus whey isolate, NO2, creatine P12 and Omega 3's for $14.80. Come on. That's a pretty good deal.
I'm not going to try to convince anyone who doesn't care about maximum nitrogen retention. Sure, you can take a gram of test and eat McDonalds and grow. But for those who look for every nutritional advantage, this is a truly great product.
And by the way, BIG BLAST is the only PF product with a 100% positive feedback. (Click "reviews" to read).
And yes, like all Protein Factory powders, you can get it unflavored.