Best rogue weapons?

[Shiftin]

When you backstab for the minimum 40-45% of the time (which has nothing to do with weapon damage), outside of using disciplines, you have to place more weight on the ratio of the weapon. The faster the weapon, the faster your damage bonus is being applied. A faster weapon does not mean you backstab more often, that timer is only modified by outside haste.

The trak tooth is absolutely the best mainhand you can get for that price, until you want to step it up and get a SCD. The only reason raiding rogues who have done the parses even carry a vox spear is to swap in for duelist backstabs because of the how the duelist modifier works.