Yes if you remove actual armor that tooltip stays the same. Im saying is the resistances scale with the armor, example I have 87% reduction in damage. Then the tooltip says diamond armor absorbs 21707 Hitpoints, Enemy hits you with 20k damage, with 87% reduction, you only get 2.6k damage from that hit. meaning diamond armor absorbs 2.6k damage and has 19 107 Left to absorb. While if you reduce your resistance to 50% = you get 10k damage from that hit. so only two hits, diamond armor is gone. The reason why lots of people are having trouble with Inferno with Diamond Armor is that they are stacking Vit and ignoring their resistances and armor. Sure if you have 100k Life + low resistance, that extra 20k wont matter to you. but if you have 20k life + high enough resistance with effectiveness similar to one above, that extra 20k would mean another 100% extra life.