Well... you'll be in the air... not standing on the ground.
great moment for the opponent to shoot something at you
Your balance probably wouldn't be perfect
edit:
about this..
As the raikiri forms in your hand a spike of wood erupts from the opposite side piercing your chest, killing you.
-insert D Ranked wood technique-
D rank is very weak, so I could easily destroy the woof spike with the raikiri, and then I'llc ontinue with the raikiri at you chest