Interesting read, depending on how much of this is era accurate it’s seems the AC soft cap might be a big determination in different classes ability to take hits (or not!).
https://www.project1999.com/forums/s...ad.php?t=20689
And as others alluded to once CH is in the picture more HP help immensely with efficiency. If you cleric needs to heal you once every 2-3 mobs is totally different than every single mob.