Just kinda reiterating what others have said, you'll want to do Windbite before the Venomous Bite due to the increased overall potency of Windbite.

And for your global cooldowns, Flaming Arrow will give you the most damage when it can last for all 30 seconds and even better if it can ride off of your buffs. Try to get Flaming Arrow up before incorporating Blunt Arrow or Repelling Shot for damage. If all buffs are up, Flaming Arrow before using Bloodletter.

Something I was not fully aware of is that if you use Legacy movement, it may impact your auto-attacks while sidestepping or running away (e.g. dodging). The auto-attack may cancel out until your next weaponskill (assuming face target option is on) or until you manually renew auto-attack. As such, it may be best to be stationary while under the effects of Barrage and timing Barrage that you would have minimum movement. If you're constantly side stepping while using Barrage, you may only get off two auto-attacks instead of the standard three or the potential four (consider Barrage turning your auto-attack from a 100 potency attack to a 300 potency attack).