Rate my tank / hybrid build

Hey guys i am looking for a build that can be very anoying to kill in battlegrounds and be a off healer in battlegrounds but i still want to be a main tank in intances and mabey even raids. I was thinking of something like this build

http://www.wowhead.com/?talent=aVxZV0tIx0dMgqzV0x

Personaly i dont really think reckoning is worth it once block / parry / doge all all up in the 20% im barly getting hit annyways i also donno about the lost perccision that might affect my tanking ability as well
so anny coments would be great thanx guys also i have a pole on good or bad build

I'd probably consider a 20/41 build, but you'll be short of points for stoicism.

It kind of depends on what your tanking gear is like, and what gear you were planning to use for pvp - just battlegrounds, or arena?
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as Holy: 6447 hp, 8688 mp, 1552 heal, 150 mp5 (in combat), 13.98%

humm personaly im struggling for money so the constant respecing is out of question lol..... i was thinking of 20/41 more now but will that be sufficant for anny horoics i go into?? or will i just splat compard to 49/12

also is reckoning a lose?? or should i keep it how it was but switch the 10 in ret to 10 in holy?? and keep prot all the same or what??

or even mabey a 15/46/0 ??

http://www.wowhead.com/?talent=qZVhtIx0dggqzVbx
For PvE tanking

http://www.wowhead.com/?talent=aVxuMxzhestxMthM
For PvP healing

That's how I would spec if I were dissatisfied with 20/41/0. I'm sure others have their own opinions.
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Stats below usually unbuffed w/o Devo Aura

1617 heal, 118 mp5, & 14.24% crit heal set

Also, I have no idea what quality of gear you're using. You can spec any way you like, but if you don't have the gear to support the role you're trying to pull off, no talent spec will save you. There's other factors too - your group. Even the best tank will fall in the face of imminent danger without a good healer behind him, and at least decent DPS'ers beside him.

20/41/0 vs 0/49/12 for tanking is, as I said, just trading 5% parry and some threat for the ability to heal decently. I venture to say that it was either your gear or your group that caused you to die, because I fail to see how 5% parry is going to be the make-or-break factor in a heroic.

A point of reference - I've tanked heroic Shattered Halls several times in my current spec with varying degrees of gear. You don't want to tank 7-8 at once, even if you can hold aggro. You want to CC several and tank the rest, and try to take the strain off the healer. To do heroic Shattered Halls without CC, you need raid tanking gear and an excellent healer, along with some competent DPS.
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Stats below usually unbuffed w/o Devo Aura

1617 heal, 118 mp5, & 14.24% crit heal set