Yeah a Rogue is one of my main characters and I find it a bit difficult at times to find the right spot aswell. Every once in a while I have to do a bit of line-dancing (yeehaa!) to finally find the right spot aswell.
It seems to me that the radius of the backstab detection zone is rather small, so some kind of indication before moving would be nice. Now it's a sort of find the right pixel mini-game.
