The Ultimate Black Mage Resources with Damage Calculator

[SeraviEdalborez]

Fireweaving isn't a DPS increase unless it both procs and the proc crits. Which is a statistically low chance.

What Fireweaving is useful for is extending the amount of time you have to move at the end of a cast very slightly while getting off a oGCD effect that you were going to use anyways, when applicable.

Like...

last fire > Swiftcast (FS proc) > Flare > Convert > use FS proc

The swiftcast was used to fireweave without doing anything especially different. And during this whole time you're using instant-casts so you can move freely. This is an extreme example though.

[Gildarts]

Fireweaving isn't a DPS increase unless it both procs and the proc crits. Which is a statistically low chance.

What Fireweaving is useful for is extending the amount of time you have to move at the end of a cast very slightly while getting off a oGCD effect that you were going to use anyways, when applicable.

Like...

last fire > Swiftcast (FS proc) > Flare > Convert > use FS proc

The swiftcast was used to fireweave without doing anything especially different. And during this whole time you're using instant-casts so you can move freely. This is an extreme example though.

yea i get it, still strange to have more delay it seems in fights over dummy not sure why, same thing when i try brd on dummy and ST or primals etc

i was able to get 2CD in between gcd but in fight there is always delay which is annoying

[Sleigh]

Fireweaving isn't a DPS increase unless it both procs and the proc crits. Which is a statistically low chance.

What Fireweaving is useful for is extending the amount of time you have to move at the end of a cast very slightly while getting off a oGCD effect that you were going to use anyways, when applicable.

Like...

last fire > Swiftcast (FS proc) > Flare > Convert > use FS proc

The swiftcast was used to fireweave without doing anything especially different. And during this whole time you're using instant-casts so you can move freely. This is an extreme example though.

If by Fireweaving you mean doing a Firestarter check with an oGCD, I'm unsure how you came to the conclusion it's only a DPS increase if you proc + crit. Here's how it plays out:

Final Fire + .5s Surecast. If you get a Firestarter you do 1500~ damage with chance to crit, no strings attached. If you fail you lost .5s, which may or may not be a negative influence on your UI3 timing.
Final Fire without oGCD. If you get a Firestarter, you now not only HAVE to wait until you have 2 ticks of MP, via say a Thunder + B1 or even waiting a bit if you got particularly bad timing on the first tick, but the Firestarter will do 1050~ with a chance to crit. This also requires Transpose, an oGCD that takes even longer than Surecast to apply.

So you have 4 scenarios:

1. Weave + get = highest DPS regardless of crit, 40% chance for this to happen, costs an oGCD's worth of time with high gains
2. Don't weave + get = Small DPS increase over normal but small indeed because of the requirements needed for this to do good damage, costs an oGCD's worth of time + forced wait time or two attacks
3. Don't weave + don't get = neutral, costs nothing
4. Weave + don't get = small DPS loss but a minor loss, costs an oGCD's worth of time with no gains. 60% chance of this happening but the loss is so minor compared to the gain I think it's worth it.

In conclusion, it actually takes more time to get less DPS if you get a Firestarter on a non-weave. If this isn't what you meant by weaving, ignore the above.