Quote Originally Posted by Rongway View Post
Never interrupt Fire 1 just to use the Fire 3 proc.

Fire III is a damage loss over Fire I unless it is instant. The reason for this is that it does 33% more damage than Fire I but it has a 40% longer cast time. When it's instant, it does 33% more damage but takes only the same 2.5s GCD that Fire I takes.

Interrupting Fire I will cost you more than 1 second, which will negate the benefit of Firestarter. If you can't register the Firestarter proc fast enough to press the Fire III button instead, let your Fire I cast finish.
Thats exactly my point... I'm tired of it not being smooth gameplay. I dont want to waste my procs but im forced to lose DPS ether by stoping Fire 1 or losing a potential proc with another Fire 1. I should be able to just use it while casting.