Regarding bard/rogue
This class needs something for focus and energy recovery. If you hit more than 10 seconds permanently, you will be out of focus and energy, especially while moving (moving reduces focus regenerating drastically). At this point, you only use your non gcd skill and waiting for resources.
Greetings
I would suggest for every Ethereal Dagger you pull out with your skill 1491130 you regenerate 5 focus/energy.