I'm having a very hard time wrapping my head around the active mitigation and I'm not exactly sure why. Are you actually meant to DELAY using the ability, because it feels that way on a lot of bosses, but then it seems like you should have it up as often as possible to mitigate melee hits as well. My guild just downed Council and Tortos last night (yeah, we scrubs lol) and took a LOT of Tortos attempts. During these attempts I found myself basically "timer watching" and making sure I had at least 3 holy power at all times for Snapping Bite, which while that seems like the right way to do it feels VERY clunky and unintuitive, moreso because you can store up to 5 so it makes me feel like I should have 5 at all times before I use Shield, when from reading it's okay to use it at 3HP if you need to?
I have only recently come back to tanking on a Paladin, so that's probably a big reason why I'm not used to it (I last tanked on him in T11 in Cata), but are there any tips or anything on getting it down correctly so I'm not either using it all the time at 5HP and risk not having it up or sitting at 5HP watching a timer count down? One attempt I was trying to use it at 5 without waiting, and then using it again immediately after at 3 but at least one time I found I didn't get 3+ again before the next Snapping Bite, and with all the moving around to get out of the stalactites I would sometimes clip a hit (or a hit from the turtles) and then die to the bite even with a cooldown up.