I've recently decided to delve in to the world of DPS to get a feel for it and something with regards to the Bard caught my eye and I have a question.

Bard skills as far as I can tell are instant cast however some have a long animation build up before the damage is dealt. Take Bloodletter for example. Some skills are also off the global cooldown like again, Bloodletter. If I use say, Venomous Bite+Bloodletter+Heavy shot would I be overriding their entire action?

Venom bite has a long animation and I can easily bring in Bloodletter before the animation is done and THEN bring in heavy shot before bloodletters animation is finished. Should I wait for all of their action animations to finalize or can I just throw in all actions really quickly?