Rogue help

[Toned]

Solo Raiding - Sub > Combat/Mute single target dps
Some fights like Ultraxxion for example you have to go combat or mute

Multi-boxing I always stick with Combat/Mute, either one is very easy to multi-box with.

For learning the mechanics of a rogue I'd suggest using mutilate or combat, as these specs have very forgiving rotations and no position requirement.