The very first problem I see with this system is what may have a fundamental flaw; How is it assumed that right after an extremity has been torn up that these 'wiz-bang' tourniquets located roughly in the same location are going to be perfectly functional?? Instead of buying some 'trick' (read: expensive) clothing and constantly carrying 4 TQ's that may or may not work, how about using that old technology known as P.O.C.K.E.T.?
This all reminds me of a similar system the Moro fighters in the Philippines used against the Marines in the very early 1900's. They were said to keep charging in attack even if shot in the extremities because just prior to the attack they had constricted the blood flows to each arm and leg with loose tourniquets (don't ask me how this was effectively accomplished :uhh:) Most of the Moros were fighting with blades. This is where the Marines picked up the name "Leathernecks" because even when the Moro's where bayoneted, they would reportedly pull the blade deeper into themselves so they might get close enough to hack at the Marines neck with their blade. So the Marines (always adapting) began wearing a thick layer of leather around their necks.
It was also during this time that the Marines found that shooting the Moro's with their 38's was ineffective (the Moros were still reaching them with their blades even after being shot), but by shooting them with 45's, they could drop them. Hence, the 1911 was made king and remained king until some pinhead at the Pentagon recently decided to take them all away and issue the "new technologies" of the 9mm's (which are basically 38's once again). :doh:
New is not always better.