Scoundrel/Operative DPS Compendium

[G-SYS]

I wanted to add a question to the Lethality<->Concealment discussion.

I played both, Lethality and Concealment for almost every Boss now and i also felt better with Lethality.

The question i am currently wondering about is the advantage of Concealment not needing Accuracy (except Rilfe Shot/Overload Shot, which isn't worth it),
while Lethality uses ranged attacks only (except Shiv), so they are in need to stack Accuracy.

Due to the itemisation problems while avoiding accuracy on our gear, how do you think will this have an impact on the pro's and con's of each specc?