"Cannot use yet."

[KariArisu]

I'd like it off too.
I use the lazy BRD macro which is append mysery's end and bloodletter to every single skill so I always have that appearing on the screen.

Enjoy having less DPS because all of your macro'd abilities don't queue. You're automatically going to lose up to 0.3 seconds every action depending on how fast you spam your keys and your ping.
On that note, SE please make /ac commands queue like normal actions do.