Tell your healing colleagues to rotate without you! Although somewhat of a healer check, it’s quite fun and somewhat reminiscent of Wrath Deathbringer Saurfang. Not a lot of movement is required such that you are free to stand and get the job done!
Specific tips/strategy for Holy Pallys healing Baleroc (normal): Your job, if you choose to accept it, will be to focus on stacking vital sparks for the first half of the fight. You do this by healing the dps affected by the Torment debuff while beaconing the tank taking damage. Moving beacon on a two tank rotation is not necessary. Note: Make sure you are prepared to identify dps with the Torment debuff. You may need to enter Torment as a custom debuff in you healing addon. I told Vuhdoh to change the color of the player bar when affected by Torment for easyer identification.
Always switch to healing the tank directly when Decimation Blade is called.
While accruing vital sparks, if possible, only use Holy Shock, Word of Glory, and Holy light. In other words, maintain mana discipline (Judge and use Divine Plea).
Once 50 vital sparks or more have been accumulated (~2min), switch to healing the tank directly frequently enough to maintain vital flame buff on yourself (i.e. once every 15 seconds minimum, make sure you have a power aura to confirm, see below). Otherwise continue to heal dps affected by torment. If you examine your logs when done, you’ll find 50-60 vital sparks and 10-20 vital flames total for the entire fight are about right. Your other two healers will be on a 15 second rotation as described in typical strat guides.
The strat described will allow for:
—a simple two healer rotation (the Holy Pally is not in the rotation and only worries about accruing vital sparks, helping with decimation blade, and then maintaining vital flame).
—the Holy Paladin to build vital spark stacks quickly.
—the tank to always be receiving heals from the Holy Pally either from the beacon or directly during decimation blade and when reigniting vital flame.
Note: setting up Power Auras to monitor vial spark stacks is very useful. Also auras to monitor vital flame timing is helpful: http://axis-mag.wowstead.com/forums/public-forums/raid-forum/1321364-baelroc-strategy (of the four provided via this link you’ll only need three, one is for monitoring your focused healing colleague if in a standard rotation)
Btw, if you’re reading this, you’d probably love to listen to MyEpicHeals at myepicheals.com, a podcast for all things healing in the World of Warcraft.
Personal notes: Early mistakes were missing healing tank during decimation blade, and continuing to stack sparks without igniting vital flame later in the fight. Stacking sparks is its own kind of tunnel vision so make absolutely sure to help with decimation blade and also understand that this strat only pays off when you start igniting your vital flame. You must be willing to switch to healing your tank directly every 15 seconds once you have 50 or more sparks. You go back to healing dps, but now your heals are boosted by the flame. Also know that your healing addon will not likely show your incoming heals as boosted, but you’ll see the results. Lastly, be patient with your dps (and tanks if rotating) until they learn the dance and all will be well! Enjoy healing this fight!
If you’d like to check our World of Logs files you can find them here:
http://www.worldoflogs.com/guilds/67992/
-Eade

If you want to build vital spark quickly you should use FoL (better HPS than Divine Light) instead of HoL when player have 14+ stack of torment. Using holy shock and WoG with 1 HoP early will also help you building stack faster.
50 stack @ 2min is very very low: a SP can solo handle a full cristal with good usage of dispersion (~19 stacks) and HoSac or PS (at ~14stacks). Spamming heal him will let you have 80+ stacks after the first cristal…
That amount of stack will allow you to use divine plea early and judge more before your second healing phase, then reach 150 stack and afk on boss, gg