The relevant thing this does is enable an 11-hit set-up without compromising too much.
Cobra Harness + Cobra Leggings are what's needed. You're losing 3 Acc and 5 Att from Skadi's Cuirie.. While gaining 1 Acc and losing 4 Att and 2% Haste from Dusk Ledelens.
So what we have here is this:
11 hit - 12 hit
1 Acc 2% Haste
Now, it's important to quantify exactly what going from 12 Joyeuse hits to 11 means. It should mean an 8.4% increase in WS's, but Joyeuse with Brutal will have a DA rate around 50%. More than 50% if Fighter's Roll is active. So roughly half of that 8.4% will be 'wasted.' Still, that should result in ~4~% more weaponskills.
1 Acc vs 9 Att, whatever.. As much as I love Acc, a 1:9 ratio is extreme, so I'd say it's either a wash or slightly favoring the Att.
So we're pretty much comparing that 4% against 2% Haste. Now sure, going from 0 -> 2% Haste, the 4% from 11-hit trumps that. But we're not going from 0 -> 2%, we're going from -at minimum- 14 -> 16%. And most likely, it's going to be much higher than that. 16% from gear and 15% from Haste is 31%. Or, 16% + 11% from March is 27%. The most you'll get in most normal situations would be Haste and one March, so 16 + 11 + 15 = 42% Haste. I think it's fair to say that there should be enough Haste for 12-hit to pull even with 11-hit, and probably outdo a little.
If there were any more room to make up for the 12-hit side, I should note that to get that 11-hit, Skadi's Chausses were needed for WS instead of Enkidu's Subligar.. So the 12-hit should have a small WS advantage.
From what I can see here, Cobra Harness is surprisingly close to Skadi's Cuirie in terms of melee TP. I was worried last night and this morning that it would actually trump the Cuirie, but after looking at it closer it seems that's not the case. But, perhaps someone has a different perspective to share? I look forward to using Cobra & 11 hit before I obtain Skadi's Cuirie, though.
Edit - Also.. Dusk Ledelsens +1 are 'only' 3-4m, nothing like the +1 Gloves. So that 2% and 9 Att advantage could be 3% and 10 Att. Edited, Jul 22nd 2009 8:52am by Carrilei