Blade Flurry PCoCS never procs

I'm using Blade Flurry with Power Charge on Crit Support, and I never get power charges. does BF not crit, or does PCoC not work with BF? my main hand chance to crit is 14%.

EDIT: nvm I had PCoC connected to blade VORTEX... not BF... how do I delete my own post? :S