ulushnar wrote:Unless your AoE DPS insanely overgears you, you can probably drop Consecrate after the second cast until new mobs enter the fray.
I love to try to maximize my damage and TPS all the time, but try this for an experiment:
1) learn to tank without the macros, so you can selectively choose which skills you are using. Drop Cons as soon as you can.
2) try putting the MINIMUM amount of threat on a target and still hold aggro.
If the mob has 50k health left, and you have a 40k threat lead on the DPS, you could just /dance the rest of the way and keep aggro. Learn how and WHEN to build threat, and heroics will be easier. I'll burn shield, hammer, cons, etc on a pull, but unless people are AOEing the whole time I can usually slack off later in the pull.
Another trick I learned is, pop Divine Plea before a pull, and pull when it has a few seconds left: the cooldown ends sooner, relative to the life of the pull. (And, of course, Pull Moar Mobs.) I still drink quite often (I'll grab 80x mage food, and use 40 in an evening sometimes), but when it's free I care less.

As others said, I think that learning to exercise fine control on what skills you use and when (and when you skip them) will help you out the most.
edit:
For what it's worth, I try to minimize my damage taken in heroics. I try to keep sacred shield up, and I tend to have 3.5-4k BV. I use a DPS weapon. Knowing when I can throttle my mana expenditures does more for me than trying to take more damage. I also roll with 40-60 drinks in my bag at all times, and am liberal with using them pre-pull if I don't have Plea ticking (and sometimes when it is), and am even more liberal with mage food. Because I'm taking relatively little damage, my DPS tend to go AOEing quite often, so adds stay up and hitting me (and proccing Sanctuary) longer, too. Your mileage may vary, I have very nice block value gear.
