3 weeks? Huh.
The whole point of Fireweaving is that it forces the game to rush out the Damage / buff information to you so I'm not sure how you'd start a cast faster than that; it goes up prior to you being allowed to input another command. PLD/WAR can do similar things to skip their long Halone / Butcher's animations and force the damage number out instantly.
Edit: That said, if I remember the math right, it comes out to roughly an expected return of ~-.3 before you factor crits. And that's the best case scenario of just trying on the final Fire in the rotation instead of saving it for a ->Transpose->Fire 3 exit from Umbral.
When I experimented with it, I found that the animation timing is such that half the time Firestarter proc'ed, I started a Fire 3 hardcast anyway
The whole point of Fireweaving is that it forces the game to rush out the Damage / buff information to you so I'm not sure how you'd start a cast faster than that; it goes up prior to you being allowed to input another command. PLD/WAR can do similar things to skip their long Halone / Butcher's animations and force the damage number out instantly.
Edit: That said, if I remember the math right, it comes out to roughly an expected return of ~-.3 before you factor crits. And that's the best case scenario of just trying on the final Fire in the rotation instead of saving it for a ->Transpose->Fire 3 exit from Umbral.