Quote Originally Posted by Berethos View Post
I won't be flexible if it's a bad idea, and wasting the LB on the pre-transform portion of the 2nd fight in the Vault is a waste, and is such a bad idea. Sure, there are bosses where it's a good idea - Ser Grinneaux the Bull isn't one of them.
To be fair, while you are correct in the assertion that seems a very silly time to use LB, would it honestly alter your chances of beating him? I think you would find the answer to be no.

Look at it this way, for the 10 seconds you saved by not LB'ing him, instead of doing it to appease someone else in what is essentially casual content; you have spent 100x that on a forum discussing it.