Nurfed priests, would this disc/hol Built work well?

[Excrucio]

Discipline Talents (26 points)


Unbreakable Will - 5/5 points
Increases your chance to resist Stun, Fear, and Silence effects by 15%.


Improved Power Word: Shield - 3/3 points
Reduces the duration of your Power Word: Shield's Weakened Soul effect by 15
seconds.


Improved Power Word: Fortitude - 2/2 points
Increases the effect of your Power Word: Fortitude spell by 30%.


Mental Agility - 5/5 points
Reduces the mana cost of your instant cast spells by 10%.


Mental Strength - 5/5 points
Increases your maximum Mana by 10%.


Inner Focus - 1/1 point
When activated, reduces the Mana cost of your next spell by 100% and increases
its critical effect chance by 25% if it is capable of a critical effect.


Meditation - 5/5 points
Allows 10% of your Mana regeneration to continue while casting.



Holy Talents (25 points)


Holy Specialization - 5/5 points
Increases the critical effect chance of your Holy spells by 5%.


Spiritual Healing - 5/5 points
Increases your Mana regeneration rate by 50% after getting a critical effect
from your Flash Heal, Heal, Greater Heal, or Prayer of Healing spell. Your Mana
may regenerate at a 50% rate while casting. Lasts 10 seconds.


Subtlety - 5/5 points
Reduces the threat generated by your healing spells by 20%.


Improved Resurrection - 2/2 points
Reduces the resurrection sickness penalty of your Resurrection spell by 25%.


Improved Healing - 5/5 points
Reduces the Mana cost of your Lesser Heal, Heal, and Greater Heal spells by 10%.


Improved Flash Heal - 2/2 points
Gives you a 70% chance to avoid interruption caused by damage while casting
Flash Heal.


Combat Resurrection - 1/1 point
Brings a dead player back to life with 50% of their health and mana. The target
does not suffer from resurrection sickness.



Shadow Talents (0 points)


None

[Tivoli]

Subtlety - 5/5 points
Reduces the threat generated by your healing spells by 20%.
-----------------------------------------------------------------------------------------
Not worth the points if you have a halfway decent tank that taunts then the generated threat won't make any difference, better spent on other talents.

Meditation - 5/5 points
Allows 10% of your Mana regeneration to continue while casting.
----------------------------------------------------------------------------------------------
I thought about this talent, but the math just doesn't make it worth the points either, here is a breakdown, at 6o I regen roughly 85 mana/tick with about 300 spirit, meditation makes that 8.5/tick while casting, it doesn't affect your out of casting regen, a flash heal costs 380 mana to cast, so i will have to have a no regen time (time during a spell being cast and the 5 seconds after) total roughly 1.5 minutes.

So 1.5 minutes of non-stop casting to gain enough for 1 flash heal. or stop casting for 8 seconds and gain enough for a flash heal. I just don't think that talent is worth it at all.