I'm afraid it's quite likely it's gonna go that way.... but we'll see.
Getting back to the matter of sets with double swords now.
This is my favourite all purpose tanking set, so I tried to create some variations starting from here:
ItemSet 336577
Possible variations:
Ammo: I guess one of the ammos with +enmity, but honestly I'd just keep Seething.
Head: Dampening Tam. Skormoth Mask second option. Gives +acc, Multiattack, if you plan on fighting something where hitting is gonna be meaningful (which kinda is the whole purpose of going with this DW set, otherwise you might as well stay with Aettir and get 55%PDT...) is gonna be really nice.
Neck: No variation and I don't think it's gonna be beneficial losing the DT+Def on this slot, kinda necessary to hit MDT cap without too many sacrifices, assuming unaugmented Shell5
Earrings: Personally I still like this combination. Accuracy and MP convert from all sources (not just physical damage)
Body: No variation, I don't think any tanking set can disregard Erilaz body.
Hands: If you can cap DT with them, why not? More status resistance, more acc/att and set bonus. Win!
Rings: Defending Ring + either a multihit or an accuracy ring (Etana? Ramuh+1?)
Back: No variation.
Waist: Could stick one of the many acc belts available, or a Windbuffet Belt+1 I guess.
Legs: Not sure I'd want to lose the Inquartata bonus... but HQ carmine path D could be a viable option I guess.
Feet: If we keep Erilaz in the legs slot, we can swap this one out with either Futark+1 for additional parry and accuracy, or Carmine Path B for some DD stats and acc... but I'd rather use Futhark honestly.
So our set could look something like this for instance:
ItemSet 339292
Total PDT: 53% (assuming 5% augment from cape)
Total MDT: 4%
Total DT: 21% (assuming 5% augment from cape)
Total DEX: 130
Total Acc: 209 (not counting DEX, this is >100 acc higher than the first set)
That's quite some difference. Looks like a really interesting tanking set which also allows you to freely WS whenever you want (Sanguine Blade) whereas on GSWD you often have to hold back either cause you're at 20% floored acc or because you don't want to interrupt SCs.
And if you wanna do real damage, I'm sure Savage Blade and Requiescat will deliver (can RUN even use Savage Blade? I guess Vorpal Blade otherwise?)
I ask again the question I asked on previous page though: is there a known difference in the base parrying rate of 1h weapons vs 2h weapons? In other games there is but I'm not sure about FFXI... has it even been tested ever?