[hxx112]

Ice3 then Fire3 opener is dropping DPS because the fire3 doesn't take the casting speed benefit right after ice3.

Also, ice to fire stance while enochain is up, after blizz4 it always cast thunder in between. Sometimes use one time Bliz4 can change back to fire stance already. If only half of the mp pool is refilled I would suggest to use another blizz4 then fire 3, instead of thunder because if Bliz4 crits the damange is way more than thunder.

Opener: Ice3 -> thunder -> sharpcast Fire3 and existing rotation is fine
MP almost dry and with enochain: Ice3 -> Blizz4 -> If mp is almost full -> Fire3; If only regen half mp -> Blizzard4 -> Fire3

I'll look into the Fire III benefiting from Blizz III opener.

As for double Blizz 4, that's a really bad idea because each time you Blizz 4, you're reducing your Eno buff by 5s. You can test it yourself by doing Eno > Blizz III > Blizz IV > Eno 25s remaining > Blizz IV + Eno 22s remaining at end of cast > Eno 20s

I looked at FFlogs for top ranked BLMs on Faust. They all use Blizz III -> Blizz IV -> Thunder I(III) or a variation of that for their MP downtime.

Also, in the worst case scenario where your MP regen doesn't tick immediately after Blizz III, you'll need at minimum around 11000 MP (which is near 100% MP) to do 4x Fire IV rotation + Blizz III + Blizz IV. For that, the safest thing to do is still Blizz III + (Blizz IV + Thunder I(III)) unless you want to take chances with the internal 3s mana tick that cannot be tracked with the bot.