I know scouts get a speed buff pretty quickly.. though it's not THAT much faster than regular speed.. however it does stack with the jboots and sprint in non-combat situations.
My shaman got SoW at 14 (I think that was the level). But of course other players have to be grouped to benefit from it. I assume you are talking about SoW potions or something to that effect. That, I haven't figured out yet. Anyone?