I'm a new Bard, but what I do is like this: StraightShot>Bloodletter>Wind>InternalRelease>Venomous>Raging>HeavyShot>BforB>StraightShot>HawkEye>HeavyShot>Barrage>Wind>BindingShot>Venom> repeat. This is for non-dungeon fights. If there is a tank, maybe i'll go with Quelling first. Point is, I use Skills with GCD in between skills with non-GCD.