Another pointer I heard in another thread which I thought was smart and worth mentionning.

If your last fire happens to trigger firestarter. go B3 -> T2 -> transpose -> THEN firestarter F3 , that way you get a modifier in damage for the starting F3 in the chain. But only if you finished your rotation with a pending firestarter proc.

although, I'm not sure this will let you benefit from the subsequent quick fire1 .. maybe someone can confirm