I discovered this trick while training. It might be faster at covering ground than 3x Surging Blade.
Tap Surging Blade once
Tap Surging Blade again. It won't activate because its delay is still active.
Use Dankuusen. Its delay has been reset by the feint Surging Blade.
Visually it looks like you're using Dankuusen twice without delay. Once you get the hang of it you can warp through maps ridiculously fast.