Some discussion on the ninja forum has led me to wonder if BLU/WAR single wielding is actually better than dual wielding if you have a DNC giving you Haste Samba. You'll end up getting Fencer, more TP per strike, aftermath on every strike (very relevant to Almace/Tizona users), a few more spell points and Genmai's Shield at the expense of your offhand and some attack speed.
The attack speed marginal gain will vary based on the weapon changes. For Almace/Sequence -> Almace, dual wield only yields a 5.3% marginal gain in attack speed because the delay on Almace is lower. Your base TP per strike goes from 55 to 71 when single wielding (a 29.1% marginal gain). I'd say it would easily win because 1) white damage would go up (yay aftermath) 2) WS rate would go up but CDC losing a hit might tilt it back the other way. Any thoughts?
I downloaded the newest sheet and tried to play with it rq, I'm not getting single wield winning in terms of dps, at least in acc/attack capped situations.
Current setup:
60 stp sam roll, acc/attack capped. DNC main in pt for 10% haste samba. JT: Same as job guide: DW 3 stp 5 sb 3 TA, critical attack 3, SJ WAR.
Tp set:
Mostly the same as dream tier in job guide too, except DW earring to brutal, DW body to TA herc body due to not needing any additional DW with 10% JA haste from DNC.
Also used DA+10 ambuscade back with almace and crit+10 back for tizona due to having better result than stp+10 on spreadsheet.
WS set:
Mostly the same as dream tier in job guide, except hands > Adhemar HQ, feet > Thereoid greaves.
Tizona/almace:
set dps: 5702
ws avg: 26102
round/ws: 2.394
totl cycle time: 349
Total cycle dmg: 33150
Tizona/genmei(using the same set for single wield due to not needing any DW gear for DW set already):
set dps: 5345
ws avg:20133
round/ws: 3.066
total cycle time: 282
total cycle dmg: 25137
Almace/sequence:
set dps:5600
ws avg: 24229
round/ws: 2.458
total cycle time 357
total cycle dmg: 33310
Almace/genmei:
set set dps: 5508
ws avg: 19815
Roind/ws: 3.827
total ycle time: 311
total cycle dmg: 28591
I haven't look into spells to rep DW job trait though, probably something DEX.
Edit: Only used CDC on both, haven't check other WS.
Edit2: You can probably gain some extra acc with single wield almace, from spell, shield, and ended up having almace single wield winning when you need acc. Haven't look into that yet though.