Yeah, I do. I learned its easier to do it w/o attacking first, so then once you get your timing diwn its a more fluid sequence...with a higher success rate on my part. Once i get it going I can keep it going, I did 11 a few minutes ago. Thats the most so far though. But using it on WiFi will be a huge pain in the ***.@ Magus: Your looking at the only Wavedash that can be done in brawl.
@Chaco: I'm guessing you use tap jump correct? Getting it nine times is actually really good, considering that most people can't get it more than 5 for a while.