Okay, my 2 cents on Cold Steel:
Observation - I'm confident that most medium - higher end stuff with any blade geometry will perform a lot of the tests on the Proof video however, there is a LOT of technique involved in some of the demos. A Spyderco in the hands of Lynn Thompson would likely produce similar results.
Opinion - 1) That having been said, I have in my arsenal mostly Benchmade, Spyderco and Cold Steel. Cold Steel has never sent me a knife that wasn't FREAKING sharp out of the box. They excel in that area way more than Benchmade and about the same as Spyderco in my experience.
2) Cold Steel knives for the most part have GREAT edge geometry. They do have some thick clunky fixed blades, but even some of the thick, heavy stuff (i.e. Trailmaster, Recon Scout) are fully flat ground with nice wide blades and they cut like crazy. They are in my opinion much easier to re-sharpen than the Beckers too.
Gripe - 1) I think Cold Steel makes a great product for a very reasonable price, and I like their in-your face, politically incorrect marketing. But - why don't they have a better warranty? How hard would it be to warranty their stuff for life like so many others, especially if they tout how tough and enduring they are????? I don't know.
2) Cold Steel folders routinely have the crappiest pocket clips I've ever seen regardless of the model. They are too small, and too tight. I usually have to remove them and pry on them for a while to get them to fit my clothes like Benchmades, Spydercos and Kershaws seem to right out of the box.
All in all I'm impressed with Cold Steel. I have personally tested and compared many of their knives with comparable Benchmade and Spydercos, and more often than not the Cold Steel will out cut and out last the edges on the others for a cheaper price. However, I still have to find the PERFECT knife.......