After Your fire 2's and up until your very low on mp (after a while you will know the timing) then cast flare> convert>either swiftcast flare or just flare> Mega Ether> Flare
There you have 3 Flares
You can do more then 3 flares with transpose but using flares after you transpose is a very big loss of dps, same goes for instance if you would flare under umbral Ice
Triple flares i have been using in coil and all the new HM dungeons, and if you have 2 blm's around well yes