Sorry we're all a bunch of math freaks Barcode Too. But really the math is the only way to really maximize yourself, obviously it's going to be hard to hit your buttons as efficiently as a spreadsheet can determine you are 'able' to hit your button. But otherwise it's still the same, perhaps you can post some of your best practices that are totally viable in a raid situation instead of just whining about how we are a bunch of math.
Edit after the fact: Fix your fucking profile if you want to talk down your nose to people about "NOT HAVING THE PLACE CLEARED OUT YET"
Perhaps I wasn't being fair to some of the different strategies of other guilds (or comps as I did state above). I'm sorry if you don't have good priests, but Kalogarn's left arm shockwave is a perfect example of the type of AoE a shaman is inferior at compared to the other classes. If you hadn't stopped reading after my very valid point that the math portion (the 85% guesstimate) of this healing stuff is basically worthless you would have seen that I enjoy the resto shaman very much and would not reroll. I also discuss the strengths of CH. Resto shamans in my opinion bring as much or more to the raid than any other class. My issue is that this reliance on chain heal is limiting the play of the people that focus so much on the HPS math.
Based on your two examples I'm going to assume you haven't cleared the place out yet so it sounds like you're speaking from ignorance or some defense mechanism protecting your opinion of our class.
I can also tell you read these boards religiously, and I recommend the boards to all my co-raiders as they are a useful tool. If you were at all concerned about improving your effectiveness to the raid I'm guessing you would stick to your guns less and open up your mind more. Like I said before... healing is about who and when, not how much. The math enhances every play style I will admit that and my example you quote was obviously an exaggeration aimed at deterring my guildy from taking these silly theory-crafting equations as bible because I feel like it weakens our ability to clear content with such an emphasis on what should be instead of what really is.
I saw this thread titled "best practices" and my mouth started to water a bit because I thought maybe, just MAYBE, it would be a discussion of how to maximize ourselves in real raid situations. I was thoroughly disappointed to find that it was more of the same... a math book... a best case scenario, HPS pissing contest. Sorry if you disagree, but I implore you to read the rest and take from it what you can, if not only to completely write off a new and (in my opinion) more fun and effective play style.