Like Delsin above, I found about +760 dps adding 80 haste with FT/FT. Haste had very â€œoscillatingâ€ EP values (between 0,6 and 1,2) since Cata launch but here I got 0,04 with WF/FT (without all raid buffs) and changing to FT/FT I find now 12,4 EP for haste (15,3 with raids buffs!). There's something weird obviously.
There's something wrong too with the Unheeded Warning trinket that isn't in the trinkets lists.
It's something to do with the ICD on flametongue when running matching speed weapons with FT/FT.
By the way, if you are running matching speed weapons with FT/FT you are doing it WRONG. NEVER run FT/FT with matching speed weapons.
There is a 0.15 second cooldown that is shared between the two weapons. When you run matched speed weapons if they sync up you can lose up to 50% of your FT procs. Keeping them unsynced is actually a lot of work and is not something you can rely on in a raid setting.
See if you start your attack outside of melee range then when you get into melee range both weapons will hit at the same time. If you start your attack inside melee range then your weapons will alternate strikes. When they are synced you lose half of your FT procs. Unsynced you only lose the ones from one weapon when you Stormstrike and when your instant attacks line up with your autoattacks. Problem is that if your weapons start unsynced and you end up outside of melee range for the duration of one swing timer then when you get back into range they will be synced up.
To try and demonstrate this better I just did two 500,000 damage runs with just autoattacks running FT/FT with 2x2.6 speed weapons on a level 70 dummy. One run I started inside melee range and just right clicked the dummy. The other one I right clicked the dummy while outside of melee range and then moved into melee range.
Started attacking inside of melee range (Unsynced)
506,119 damage - 3414.6 dps
128 melee attacks - 85 hits, 35 crits, 10 misses
118 FT procs - 109 hits and 9 crits
118 melee attacks that did damage -> 118 FT procs = 100%
Started attacking outside of melee range (Synced)
501,343 damage - 3019.0 dps
154 melee attacks - 104 hits, 41 crits, 9 misses
76 FT procs - 73 hits and 3 crits
145 melee attacks that did damage -> 76 FT procs = 52.4%
The sim may not perfectly match in-game conditions but there is no way for the sim to account for whether you managed to keep your weapons unsynced or not during an encounter.
I think what I will just ask Ziff to do is to add a warning for the info box that goes off whenever the weapons speeds are the same and the person has FT/FT selected that says "Running FT/FT with matched speed weapons is NOT recommended due to FT's shared ICD and the condition is not supported by EnhSim. Use the results obtained at your own risk."EnhSim - EnhSim - View Issue #7735: FT/FT with matched speed weapons.