RDM/RNK make it good

[Babekeke]

Ok let me put it in perspective.

DW I = -10%, 100/90 = 11.11% DPS improvement
DW II = -15% 100/85 = 17.64% DPS improvement
DW III = -25% 100/75 = 33.33% DPS improvement
DW III + Suppa = -30% 100/70 = 42.85% DPS improvement

Not to mention the additional hit on WS's and the STR + 11 ATK + 22(27.5) from off hand.

Enspells would have to do ~200 per hit to get anywhere close to that. Not likely with how SE is right now. Best idea would be for SE to crumble and just give BST and RDM native DW equal to what they get from SJ at 90.

25% gear haste +43% magic haste cap = 68% delay reduction = Almace (99) DPS going from 18.75 up to 58.59
Add DW3 + suppa = 77% delay reduction = Almace (99) DPS going up again to 81.52 (39.1% improvement over single wield)
So it looks good... However:

Add in a DNC to your pt with 5/5 haste samba!
25% gear haste +43% magic haste cap + 10% Samba= 78% delay reduction (2% off cap) = Almace (99) DPS of 85.22 (45% increase over no samba)
Now, you only need 10% DW to hit the haste cap, so DW2 or 3 will both put you over. In this situation (and it's probably a quite unlikely situation to be in), Fencer will offer you a decent benefit, though not necessarily better than the last 2% haste.

My recommendation: If you're in this situation, sub WAR and get 5% crit rate, 20 tp bonus, 10% double attack, Berserk and Warcry.