Couple of points:
- They never caught on in the "tactical world" because they are "bulky" to try and pack/carry. That ratchet mechanism adds a lot of size/thickness to the design. If being able to get your tourniquet into a small package/shape is important to you, then this is not what you want.
- They run around $10 more than a typical tourniquet, so for large purchases they can be less cost effective.
- The ratchet works great if the tourniquet is stationary. This means you either have to hold it, or you have to get it on very tight (which you should do). If it is loose, and you try to ratchet it, it will just spin around the extremity.
I have 2 of them in my big field pack, and I would not hesitate to use them, but for the reasons above, I do not carry them on my personal daily duty gear.
The ratchet is nice, but I have never seen anyone
with proper training have any trouble using the Windless models effectively.
Sorry, but IMHO, the "rubber band" tourniquets are junk to reliably stopping arterial bleeds! I have some, but I use them to go over the top of a bandage to create more direct pressure.
*EDIT - almost forgot, you have to make sure that the ratchet teeth stay clear of debris. Saw a training scenario where blood got on the tourniquet during application, and it was allowed to touch the ground, which then picked up a bunch of dirt and grass. When the user attempted to engage the ratchet mechanism it jammed up on that debris. The user released it, and was able to get it cleared, and back in working order. He was NOT happy!