That's my AM. With your AP drain, you don't need restorative burst. If you are always getting disrupted, then you need to practice target control a bit better. The insta rezz is super helpful as well. You can give yourself immunities, and once you get one, it's insta rezz' for free. Great for Kiting, just make sure your 2nd healer is aware you are on rezz duty, and profit.
Magical Infusion stacks with RP buff, and since MotM is pretty much mandatory, you might as well get it imo. It can be exceptionally helpful(MI that is).
Edit: Gear wise, full anni with Wounds talis to just under 7k. Tried mixing armor/toughness and wasn't that effective. With such high healing burst, you just need to focus on surviving the KD and morale bombs.
Oh, and always remember that you have TWO detaunts. Use them wisely. If you detaunt someone in melee with you, swap targets so your AA doesn't break the Detaunt... Oh, and don't lifetap your detaunt target...
your point about ap drain
in a 6v6 situation (or any situation that involves fighting a zealot) the MDPS will have infinite AP due to how the Ritual works, Ap draining a MDPS drains next to zero, sure you get AP back but your AP drain is much more useful buried on a Healer, though you can get disrupted or cant always get range on their healer.
If you're going to drop Restorative still then you'd be better of with Golden Aura, since your healing going down close to 0 when you get staggered. and an RP will find it extremely difficult to keep a heal target alive through a Morale burst.
Correct. Which is why you place your AP drain intelligently. Same with the target/friendly on your Lifetap, you can AoE heal, make sure you use that properly. Same goes for Vaul. Pets are excellent targets also.
In my experience, the stagger is worth it. I frequently already have immunity via enemies CC, and in your example, if I am staggered and the RP can't keep someone else up, I have an instant rezz every 5s for the next 25 seconds. Ontop of spike heals via life-tap... I have found it exceptional in kiting. The biggest "issue" is the seemingly wasted tactic slot when your group isn't dying...
Builds are all about play style. Both personal, and group. Fiddle around with your build, and find what works for you. But don't be afraid to try some stuff, even if you think it will fail.