You guys are misled. Holy shield can make a tankadin above 102.4% uncrushable with only kara gear or even lower. I don't count on redoubt. Actually paladins only take redoubt talent to get the subsequent  shield absorption talent.

Holy shield has 8 charges in 8s instead of warrior shield block 's 2 charges in 5s.  My holy shield never is used up. I have wws report to prove I got 0 crushings on Lurker adn Gruul, keeping holy shield up all the time.  (My avg hit from Lurker was only 3980.  )  Thats avoiding a 9k crushing hit from Lurker. I have seen wws reports whenw warriors tank them and they get crushings on Tidewalker, Lurker, Gruul, 5 crushings every  3 minutes, making their hp go to 5% hp nearly dieing or dieing every time.

Holy shield is op , we dont get burst dmg like warriors!