Damage / Buff calculations based on animation is problematic.

[Feidam]

I have ever missed a fire starter proc. not sure some people freak out over this. I just finish the cast and then use fire 3. It was worked every time and never wasted a proc. the proc does have a time limit though and if you don't notice it maybe that is how you are missing the proc.

[Altena]

I have ever missed a fire starter proc. not sure some people freak out over this. I just finish the cast and then use fire 3. It was worked every time and never wasted a proc. the proc does have a time limit though and if you don't notice it maybe that is how you are missing the proc.

Firestarter can proc on the next Fire (and happens often) - ie you are wasting a proc.

For example:
Cast Fire
While starting next Fire, Firestarter procs.
Finish casting Fire and Firestarter procs on this one too..

ie you waste the first proc if you decide to finish the 2nd Fire cast.

[Feidam]

Firestarter can proc on the next Fire (and happens often) - ie you are wasting a proc.

For example:
Cast Fire
While starting next Fire, Firestarter procs.
Finish casting Fire and Firestarter procs on this one too..

ie you waste the first proc if you decide to finish the 2nd Fire cast.

Honestly, IMO, that is splitting hairs because the rng just happened to give another proc. the few times I've seen that happen doesn't warrant an overhaul of the system. I'm all for the game being responsive but this IMO really is a non issue. In my experience the vast majority of fire stater procs are not back to back.