A comment from Xserisi has been brought to my attention. I figured it would benefit many players if they knew about it as well so I decided to turn it into a blog post.
Last night we saw BT, we stopped before Mother Shiraz, seeing we ran out of time and were unsure about our health if we would go in with with low or nill shadow resist gear. (anyone tried after patch?)
Yes. I can say with certainty that you donÃ¢â‚¬â„¢t need to have full Shadow Resist gear on for Mother Shahraz. Prayer of Shadow Protection or Shadow Aura from the Paladins should be enough to get you through it. DPS has to be high. You donÃ¢â‚¬â„¢t want to take more than 3 or 4 teleports. She should be able to go down relatively fast.
Keep in mind, everyone has to commit. If you go full Shadow Resist, make sure every one does so. If you want to go for the blitz method, then keep your raiding gear on. Soak tanks are still important. Your healers have to stand on their head (hockey expression for goalies making unbelievable saves).
As my ancestor Napoleonicus once said:
There ainÃ¢â‚¬â„¢t a problem in the world that canÃ¢â‚¬â„¢t be solved by copious amounts of DPS.