I’ll admit, I’m not that great of a healer, and really, I probably never was. Kamalia scraped through Proving Grounds Silver by the skin of her teeth and still hasn’t gone back for Gold (let alone Endless/Proven!).
I made the Paladin get her own Proving Grounds Silver — it took several attempts — before I started taking her to LFR. I plan to do the same with the Priest, the Druid, and the Monk before I take them to LFR. This is not a new objective, sparked by the news that a Proving Grounds Silver will be required to random-queue for Heroic Dungeons in Warlords; rather, it is something I have planned to do with my healers ever since the Proving Grounds first came out and Ghostcrawler commented that in the future (i.e., next expansion) a Proving Grounds Silver might be required to queue for LFR.
Because Shaman have so few instant-cast heals — only Riptide and Nature’s Swiftness + [heal] when I first began raiding — I learned to be a turret. I never properly learned how to use Spiritwalker’s Grace; I’m always forgetting about it and realizing only later, “oh, that bit of the fight would have been a good time to use SWG”. I don’t always remember, the next time I do the fight, to use SWG at that particular point, either.
With my Paladin, running LFR, I forget to use Avenging Wrath, Guardian of Ancient Kings, and especially “Raidwall”, because I never can remember what the real name of that spell is. But I have learned to use my instant-cast heals on the move, tossing out Holy Shocks, Eternal Flames, and Lights of Dawn as I run out of the fire. When Patch 6.0 comes, I will have to unlearn that behavior.
Blizz is backtracking on the “smart heals”; I seem to remember that when they were first introduced they bounced randomly, and only later were changed to prefer the most-damaged player within range. The notion that ground effect and other AOE type heals should be most mana-effective when two or more players are within them, well, isn’t that how it should have been working all along? Even if I was not very good at actually choosing my targeting/placement? So, whatever. Maybe I’ll actually learn to be a better healer again in Warlords after the decay I’ve suffered since quitting regular guild-based raiding and becoming an LFR Tourist-and-Transmog raider.
To me, it seems like the most difficult part of the healing changes will be getting the DPS mindset to accept that it’s OKAY to be at less than 100% health some or even most of the time and not be continually whining for heals and blaming the healers for every wipe.