I've heard of people using the mousewheel but I still like it for camera adjustment. Gnome POV sucks.
As for my bindings, mine work great for me but I have had to adjust some for performance. Archimonde killed way fewer people when I went from Alt-F3 to change to berserker stance and Shift-1 to berserker rage to double tapping ~ for instance.
Habits are fine, being unwilling to change them is bad.
Speaking of which, I was big into max stamina pretty much our whole way from SSC to BT and I have to say reading this I think at times I did us a disservice because there are several fights that would be easier on healers had I been a little more open to avoidance. That said, we didn't have a big problem with tank deaths except on Morogrim but it would have been less stressful on them. I'm in the midst of putting together an avoidance set so that my three tanking sets look like:
TPS Set: Block Value, Hit, Expertise. I don't have the Tier 6 chest yet so I'm sticking with 2 piece tier 5 for this set until I can do 4 piece Tier 6 while keeping the Gorefiend gloves on.
[Gnomeregan Auto-Blocker 600] for trinket. Thinking of putting my
[Drake Fang Talisman] in the other slot for lack of
[Romulo's Poison Vial] but not sure.
Avoidance Set: Same as above but with the
[Scarab of Displacement] and
[Moroes' Lucky Pocket Watch], essentially. Probably a
[Rifle of the Stoic Guardian] once I get one.
Stamina:
[Faceplate of the Impenetrable],
[Praetorian's Legguards], stam trinkets. Mostly for Illidan at this point.