I have all Ray Mears' books and DVDs and Lord help me I even bought his knife, so it's safe to say that I like what the guy produces.
But I think he is as much a gear-junkie as many others. If you look at his kit list in his Outdoor Survival Book and then compare it to his Bushcraft book then you can see for yourself just how much even Ray has changes his mind on what kit you should have. In one episode he can used more knives than a butcher for heaven's sake.
My belief is keep it simple. Besides, it's like the old maxim says that when you most need your kit, you probably won't have it.
"I learned how much of what we think to be necesary is superfluous; I leaned how few things are essential, and how essential those things really are."
Bernard Ferguson, Chindits, Burma 1943.