Holy Tanking Spec

http://www.wowhead.com/?talent=aVxhbtzheoZV0thhZV0x

This is the spec Im planning to try soon.
I got Light's grace for reduced casting and holy shock as my snap aggro instead of AS. I have imp lay on hands as a panic button of sorts. I figured it will give me another 6% damage reduction when used.
What do you guys think? I've been wanting to put 2/2 on imp blessing of wisdom but im not sure which to get. I maximized all my crits and healing talents since I will lost Holy Guidance but my healing gear has improved so it should cover it.

Opinions for both tanking and healing pls?

Since you aren't going for holy shield, you will be crushable, so I wouldn't worry about the points in the Ret tree as much. I would finish off Anticipation so reaching uncritable is easier for ya (opens up gearing options), and get Blessed Life. The last few points I would put in Shield Spec and Spell Warding for some more damage reduction, but those 5 points can be moved anywhere if you like.

http://www.wowhead.com/?talent=aVxhbtzhesZV0tIx0b
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Im not trying to reach uncrushable. Im putting some parry cuz its straight up avoidance. Think its 2-3 pts in anticipation equals 1 parry. This is really more for tanking heroics.

But I do like your idea of getting spell warding=D

To LORE:
How is his healing though?

His healing's fine, all he's really missing is Divine Illumination which is nice but not a huge deal.
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Me, LOL!

What about this?

http://www.wowhead.com/?talent=sVxhbtzhesZV0thZV0x

I just moved the 3 pts in Anticipation to Blessed life since it works with spells too and 3 pts in anticipation is about 1.44% avoidance and 0.12% block. If I can get uncrittable then it shouldnt be a prob I think.

Which do you think is better:

1.44% avoidance and 0.12% block rating?

- OR -

10% chance to receive 1/2 damage?

Decent, if you're getting Redoubt you really want Shield Spec though, otherwise it's not nearly as effective.
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Me, LOL!