100bs and quickness
from my experience quickness will not speed up the channel if you get it mid channel. If you have prior to activating it then it will speed up the channel and you will be able to get the full cast in half the time.
Casting it before = speedy
Mid channel = nope. Just like stomps it might seem faster but actually won’t do a thing.
They changed it so you can do it mid channel now.
The channel bar will be off, but it still works at the correct speed.
I rarely ever see it bug out due to this though since that patch.