Originally Posted by manly

Based on my experience on threat management (particularly in sunwell-era), I learned the hard way that generally you want to invis no before 70% of the boss hp or otherwise you will catch back up on threat. Following that simple rule of thumb will generally make it so that you'll ever have any threat issues, even on vezax, and every week so far has proven me that this simple rule has yet to fail me. Also I did put it in my comments on the threat management section of the ffb thread for what its worth.