Quote Originally Posted by NyneAlexander View Post
The best advice as to why NOT to use the infinite flare rotation is you have to have a good grasp of the refresh timing of mana regen and be able to somewhat glitch the system to get a mana tick AS your flare is going off. This takes practice and skill, far more than being able to calculate when a fire II will take you below the MP minimum to cast flare.
Yes, playing well takes practice and skill.

That said, as far as properly timing your first Flare to get this to work, the window of input is approximately half a second wide. This is a rather large window, and one that is quite easy to get accustomed to with a bit of practice at the dummies. Just a few minutes should be enough, provided you know more or less where the window is, which as was mentioned is roughly just under 2 seconds after your first tick of MP.

Any BLM that would like to play their job optimally is encouraged to learn this, and love it, as I said earlier. Any BLM who is satisfied doing sub-optimal DPS can carry on doing Fire IIs.