I dunno. That one piece of gear causes your health to go up by around 225 in party with food. Not sure how tight that kill would be in terms of how much damage it'll do to you, but I've very rarely seen a survival with less hp than that. While I'm all for those lucky saves with messed up mechanics or what have you, I'm a firm believer in the fact that progression should always be about learning NOT to screw things up rather than scrambling to fix regular mistakes.

Brought this up last night when someone mentioned how we could just let one Piston in the last group hit the electricity since we CAN survive it. You shouldn't plan for - or gear yourself toward - mistakes. You should plan for things to go right. 86 crit is a huge swing to lose for the off-chance you could maybe survive a botched mechanic, imo, when the fight is already a super tight dps check. But, I mean, personal preference. xD