Hey Bobby! Welcome back!
I've been using ShamWoW for raid finder and Mogu'Shan Normal and i must say, it works great except for one thing: Mana management. The raid settings are kinda outdated, since it's not longer possible to spam healing rain and telluric currents. So, the healing rain setting at 93% is obsolete... I've been playing around with the settings, and found that somewhere between 75 and 80% is more accurate. It will still give you great numbers in recount, and it will be more conservative with mana. This is not perfect however, cause i end up oom anyway, but it allows me to endure the fight till (almost) the end...
You might want to check this out. Other than that it works great for raids. (I have to pop up some unsupported spells such as healing tide totem or fire elemental, since i'm running as primal elementalist, but it is not a big deal, the CC does 90% of the work).