Endurance augments are the last place to look for more HP. Changing a "high willpower" mod for a "low willpower" mod gives you more points of endurance than you lost in mitigation.
Ye that's better, still do not want.
Also if anyone feels that they need buffer HP blame your healers. In fact just blame your healers by default, we are used to it.
Maybe for 16 man, but my laptop would melt at 16 man so I dunno.