You are ignoring what I’ve been saying, even though I’ve addressed the 6% heal multiple times now.
All your heals will be higher because DS usage is timed based on the percentage damage taken in the last 5 seconds. Not the absolute value of damage taken in the last 5 seconds.
If you lose 50% HP in the last 5 seconds, your DS will always be higher with more HP.
Examples citing absolute numbers like “1m dmg in 5 seconds” are obtuse and braindead because DS usage is not timed based on the absolute number of HP taken. It is timed based on the percentage of damage taken in the last 5 seconds.