As someone who has never played a caster and is just figuring out how to play Shadow this seems accurate if you're not playing it to it's fullest..
OT: Monks are mediocre DPS and are only performing well because of a trinket. They have no idea what they're trying to do with WW Monks so they keep "buffing" and "nerfing" them every so often. BM Hunters are pretty good with SV being only like 6k behind I think and offer mad utility as a BM.