I loved this video! It didn't cover a wide variety of bits, but it did give me a really good knowledge base of the horses mouth and how it works. I think anyone who is getting into horses, or has their first horse should watch it. I learned a lot about how to make sure the bit fits the horse, and what to look at in the horses mouth to make sure that the problem the horse is displaying is indeed from the bit. I like the big point that Hilary makes, that a lot of people don't listen to... if you're not a good rider, the bit in the horses mouth will not make you a better one. (Not word for word, but you get the idea.)
My thoughts about bits are similar to my ideas at work. I want my students in the least restrictive environment, but where they are successful. Same thing goes for the bit. I want Denali in the bit that is best for her without being restrictive. My trainer thinks I should try a Kimberwick. I like mine thought, and think that I'm going to continue to use it. I need to be a better rider, it's not my horse. We currently use a French Link Boucher, and Denali seems to go well in it.
At the end of the video she mentions the second video and what it entails. Sadly, giddyupflix does not carry that one.
What kind of bit do you use? What made you pick it?