Trying to force myself to get the hang of monk in pvp again and was talking about this yesterday with someone

If I melee > phoenix > winds > phoenix > fires, is it worth it to lose the potency if you miss the second phoenix and waste a fire's charge for the extra 50% on the fires you do use?

It probably wouldn't be if it isn't likely to kill, but I'm trying to decide whether I just go for it every time for the potential burst