Gunbreaker - Should Superbolide keep HP of recent healings?

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Originally Posted by Lemuel81

You only need to hit one button, just make a macro.

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So 2 buttons.
Because if I've already hit the macro that uses Superbolide AND alerts that I'm using it, it's already too late.
And then, I'm delaying the use of Superbolide, to the point it might be too late, and I die...

The only thing I want for Superbolide is for the Invuln effect to apply before the HP drop.