Question About Trickster Rogue

pantheist84

I have noticed that dazing strike directly gives me combat advantage when it lands however, smoke bomb delivers the same effect (daze) and doesn't offer combat advantage. Also sometimes it feels like smoke bomb doesn't even work? both pve and pvp I have noticed if an opponent is already performing an action then it will complete regardless..is this because it doesn't interrupt? Would like some insider information about smoke bomb,combat advantage and is there something not adding up or am I not thinking correctly?

The internet hasn't offered me any new information unless I am looking in the wrong places.