Originally posted by: tri-sapphire
Yep. Jounnin wouldn't be that stupid to stop and look at those pretty mirrors.
Actually, as long as there's water around Haku can make really good use of those mirrors. He doesn't have to make a circle around his opponent, and those mirrors give him speed about equal to instant transportation. After all, he popped up in front of Kakashi after he started to perform chidori (and Haku was kinda far away), meaning that Kakashi was going full speed (it's a requirement of the skill).