It comes down to being proactive when you play sch and knowing when damage is coming instead of trying to react to a cast bar, cause there are a lot of timings for tank busters in this game aren't long enough for you to begin your adlo cast when you see the boss casting and have the galvanize effect apply, although lately they've been lenient with this and have made them longer.

The good thing is, even if your adlo is late it's not a complete waste as long as your tank survived cause the galvanize will now be up for the auto-attack that follows, which is usually what kills tanks anyway.