Can anyone help me make sense of this please?

[Dragonlord]

This equation adds points to your base damage while performing a weapon skill. I'll use the new meritable WS as example because at 5/5 they are 100% modded by their respective stats.

So let's look at tachi: shoha. It has WSC of 100% str. When a WS is calculated, it adds WSC, weapon damage, and fSTR together to get your WS base damage.

With shoha, WSC = str*1, or str*100%. So every point of str added increase your WS base damage by 1, due to WSC. or str*.85 due to alpha correction.

Is swapping gear worth it? ALWAYS. Don't bother arguing otherwise.

[Trisscar]

This equation adds points to your base damage while performing a weapon skill. I'll use the new meritable WS as example because at 5/5 they are 100% modded by their respective stats.

So let's look at tachi: shoha. It has WSC of 100% str. When a WS is calculated, it adds WSC, weapon damage, and fSTR together to get your WS base damage.

Yeah, but fSTR is the difference between your STR and your target's VIT, right? Where do I get the information about specific mobs like Akvan, Voidwrought, Necronomicon and the other LWNM?

With shoha, WSC = str*1, or str*100%. So every point of str added increase your WS base damage by 1, due to WSC. or str*.85 due to alpha correction.

I see. But I still don't understand what 'floor' is supposed to mean. What does 'floor' mean in the equation? What do I do with it?

Is swapping gear worth it? ALWAYS. Don't bother arguing otherwise.

Not going to, because it's not the point of this thread.

[scaevola]

Yeah, but fSTR is the difference between your STR and your target's VIT, right? Where do I get the information about specific mobs like Akvan, Voidwrought, Necronomicon and the other LWNM?

Unless I'm seriously misunderstanding fSTR, that information doesn't matter unless you can cap it against a given target, because fSTR increases your damage linearly so adding a point of STR always increases your damage by the same amount until the value is high (at which point it still increases damage more than most other options) or capped.

You are, simply put, staggeringly unlikely to cap fSTR on meaningful targets outside Abyssea. Depending on weapon rank, your target, and whether or not you set VV or a different STR atma, you may have a hard time capping fSTR inside Abyssea. The VIT of various VWNMs is perhaps interesting information to have but its practical application seems pretty limited.

[Dragonlord]

You are, simply put, staggeringly unlikely to cap fSTR on meaningful targets outside Abyssea.

No, mobs tend to have lower defensive stats then compared to their offensive stats. fSTR's cap is weapon rank +8 where weapon rank is =floor(weapon damage/9). so a lv 90 almace with dmg:61 has weapon rank of 6, and fSTR cap of 14.

This means the blu will need only 60 str more than the target's vit to cap. This is possible against pretty much anything in abyssea (with cruor buffs easily) and i'd say up to T2 jeuno VWNMs pre-stat increasing temps.

Now for a CDC calculation:
CDC = 60% dex mod WSC, 2.25 first hit fTP
This means the WS, in total, including extra hit from DW, is a 5.25 fTP WS

WS dmg=(D+fSTR+WSC)*fTP*pDIF

WSC = 150*.6 = 90

(61+14+90)*5.25*2.4=2079 damage

Attack ratio is the formula the relates your attack to your opponent's defense. pDIF takes that and is adjusted by a random multiplier and crit damage increase. Since CDC can crit, i assumed 40% crit hit rate. This increases the avg pDIF from 2.0 (the 1 handed cap) to 2.4

There are other factors like crit hit dmg, DA, and TA, but that's not necessary to demonstrate WS calculation. Note that this calculation uses capped attack ratio and capped fSTR.