Do you have the specifics on your build, interested to know how you put it all together as I'm working on one now!
I'm just following what Boeroer wrote: no melee talents, maximize INT, and get the dual blunderbusses (plus upgrades) ASAP. For me, Enduring Dance is key, always use it to spam Whispers of the Wind, Dichotomous Soul (to tank) and your ranged fists.
The rest is up to you.