PvE-DPS tree using Imp Sap?

If one wanted to keep 3/3 Improved Sap to provide CC for your team, how would you allocate your other talents to allow for that to happen as well as producing an adequate amount of damage?
I am very unfamiliar with rogue having played them only sparsely and only during lowbie stages so I'd be interested in reading any ideas you'd like to suggest here.
http://db.vanillagaming.org/?talent#f0xZGci00Ez0bZAMMcc
Maybe?
Figured shorter cd on blind can add in to a CC-oriented build, and quicker vanish so you can use it for a 2nd opener midfight more often.
I am very unfamiliar with rogue having played them only sparsely and only during lowbie stages so I'd be interested in reading any ideas you'd like to suggest here.
http://db.vanillagaming.org/?talent#f0xZGci00Ez0bZAMMcc
Maybe?
Figured shorter cd on blind can add in to a CC-oriented build, and quicker vanish so you can use it for a 2nd opener midfight more often.