TweetHere's an idea - first of all- at this point focus on determining if this source is legit. (references from guys who post on boards like this, etc.)
Then maybe place a small order and check the quality. ( for example check the batch # on QV site, or send some of it to a lab)
Once you establish that your source is legit - then it doesn't make that much difference, IMO, which company you use ----- just check lab results and go with the best $$$ cost per unit of gear.
Jay