if you think you can survive lob with 4k on a first life tank, look me up on sarlona, i'd be happy to get the guild together to run that with you to prove otherwise. switching tanks helps but most pugs can barely get one decent tank. Try skeletons or thth or Dryad not as undead on R1. My guild leader has a racial completionist, heroic completionist, epic completionist tank that was only at 5500 hp and lost 600 hp with these changes. Yes builds will change but if you my point is all other defenses are mute so either devs need to make AC or PRR relevant or HP are the only valid method of R1 tanking. If you can get close to the same with DPS build then why build a tank at all.