Okay, it wouldn't let me edit it but here is the example that I was trying to post. Notice that the horse keeps his pivot foot in the same place but shifts the weight off of it every time he puts down his other back foot.
I love the horse in the video Koomy posted. Such BIG strides! I would kill to ride him. O_O
I would love to be able to do that kind of advanced dressage work, maybe someday I'll get a good trainer and a horse capable of it, haha.
I did learn from this thread, verified some information I already knew and learned all about rollbacks. I thought it was just a sharp turn, but I guess that's too simple, lol. So basically it's a BALANCED sharp turn, right?