Quote Originally Posted by CKNovel View Post
I know the calculations behind the vitality stat is a bit tricky, but if you use a vitality potion (12 vitality), you'll get around 265 Max HP.

1 vitality should be around 22 Max HP.

5 vitality should be 110 Max HP so a net 0.08% increase.

On the opposite if HP Materia were still a thing, one slot should give around 40 vitality, considering Vitality VI gave 25 vitality. 40 vitality should be around 880 Max HP. Per slots. Which would be a 10k HP increase on left side alone.

5 vitality is a drop in a lake, if your healers need that 110 Max HP, you may want to remap your group mitigation.
When you're world progging yes you need the 110 max hp. Having the small amount of extra health can let you survive and see further into a fight, which is huge, and also gives a bit of extra room for when the healers have not planned out the fight yet.