http://www.youtube.com/watch?v=rLzQHt2TXsc
U-turn is used at 0:21 and kojondo takes LO recoil, when it comes back in at 5:27 it's back at full health.
Kojondo had less than 2/3 HP, so there's still a chance it won't activate if it's at higher than 2/3 HP. But yeah, there's a lot of problems/hacking with these videos so we really do need someone to test it in-game.