I re-certed my Wilderness First Responder with NOLS a few months ago, and asked specifically about QuikClot. Their take is that direct pressure and well-maintained tourniquets are the better way to go. They argue that QuikClot and similar agents are introducing a foreign substance into an open wound, and if that can be avoided by using alternate techniques, it should.

We also had another guy there who purported to work at the Pentagon - I was in Northern Virginia at the time, so it's plausible, though I didn't ask the guy for identification - and said that this was the military's current procedure too, to only use QC when other treatments were failing. Anybody here able to confirm/deny that?