I'd like to add to this post, and possibly bump it back into the spot light.
Currently, the enhance shaman spec is trash when it comes to pve..... and maybe even pvp. For those of you that remember enhance on retail from open beta (2004) to pre-bc release, you can agree with this statement. I'm having a hard time believing that Nostalrius is asking players to support the servers when a large population of players, favorite class, has broken mechanics. Hell, I will even go so far as to say on the pve server the class spec is unplayable, as most of the mobs and even player character spells don't interupt when hit by earth shock.
Windfury imbue is essential to the enhance shaman. As an enhance shaman you can't even get top tier without taking a talent that buffs windfury attack power proc. Windfury has two major issues that I see with it currently. First, the ap bonus isn't applied over the remaining attacks (We all know this),and second the procs seem to dry up. I've tried several different weapon speeds (1h/2h) etc. At a certain point the procs just stop for extended amount of time. I know that late vanilla blizz had added an internal cd to windfury to keep the procs from chaining 1 right after the other. It just seems like this cd is causing an occasional issue where the buff has to be reset by recasting the imbue.
Being on the pve server I have to say these bugs have made Raiding as enhancement next to impossible due to the talents that buff windfury totem being usless and windfury just being unreliable and not as hard hitting for the shaman himself in general.
I beg that the nost dev team take a look at this imbue and figure out a way to make it viable in a blizzlike sense. This server is becoming player funded, and to see something this big for one class being ignored is heartbreaking. Yes I say ignored due to lack of green posts and having seen the bug tracker from 9 months ago with no results.