I did... I couldn't find much, although I might have been using the wrong search terms or something. I'll try again, and I'm sorry for having stolen 30 seconds from your life.
<edit> Okay, I searched using "surface dynamic movement", "dynamic movement", "DM", and not to mention looking at tons of the threads in this section, and I can't find what I'm looking for. Am I just an idiot, or looking wrong, or something? Maybe I'll figure it out on my own eventually... back to the grind, then.