Re: Celox (Trauma Blood Clotting Agent)
I didn't mean to imply that it's not a useful product; sorry if it came across that way. I was primarily reiterating what was told to me by the two professionals who I spoke with.
I think the position they are speaking from is this... if you have a severed femoral or subclavian artery, you've only got 15-30 seconds before you loose consciousness. With a severed brachial, approximately 45-60 seconds. If you're unfortunate enough to sustain an injury of this degree while alone, chances are you're not gonna to be able to access your quick clot and address the injury before you're out, especially when you consider that wigging out at the sight of rapid blood loss from your own body is not that uncommon of a response. I've had to treat a laceration on a friend who was an experienced paramedic and had worked on injuries as extreme as a self-inflicted GSW to the face, simply because he froze up at the sight of that much of his own blood. What is a fairly common response (in my experience) is to grab the injury site.
With the same degree of research needed to find a video of military medics testing the efficacy of Quick Clot on a severed pig femoral, one could also find information regarding where to apply pressure in response to various injury locations. Equipped with that knowledge, the instinctual "grab" response can be more effectively applied, in a much quicker time frame than immediately trying to access your QC, buying you some time to fish it out of your pack and apply it to the wound.
On top of that I'll go further to assume that, given the severity of injuries that both of these guys are accustomed to dealing with, the reason they say you probably have worse problems to worry about is: injuries to one of these major blood vessels are often compounded by some other number of injuries that can ultimately pose just as great of a threat to your survival as the blood loss.
I will clarify though, that it's undoubtedly an amazing product and the pig study demonstrates how effective it can be in comparison to SOPs prior to it's availability. I DO think it is a good thing to have in your hiking/hunting pack or car, but I think you're more likely to use it on someone else when it's absolutely necessary than to be able to use it on yourself under the same circumstances. I just don't think having a pack of QC in your kit makes you prepared to deal with an injury of this nature and am merely trying to point out the importance in taking your pursuit of preparedness one step further.
For what it's worth, I also keep a CAT tourniquet and an Israeli combat dressing that the medic gave me in my hiking pack... not just superglue, black pepper, and spiderwebs.