Need a Mut Rogues advice on weapons

[Danketsu]

I currently am using:
MH - Twilight Mist
OH - Furious Gladiator's Mutilator

I recently got the Golem Shard Sticker.

Should this go in my MH? Or OH?

MH Has 156 dps...yet a 1.5 speed would be better in OH..Hard choice.

[Swiftz]

The best combination of the 3 pve-wise is Golem-Shard OH and Twilight Mist MH as per http://shadowpanther.net/daggers.htm

The numbers are sometimes off, but anyhow the difference between replacing either by the sticker is very small...

I hate main hands -.- I want one too, I'm using the 188dps pvp dagger because I couldn't get a single Sinster Revenge drop, and apparently same goes for Ulduar ^^