Dunno for normal. Could definitely feel it on lvl30 raid yesterday though, a few times I was last standing and goofing around, definitely could take a lot more abuse than at lvl29.
If you can manage to either a) find a shortcut around the jumping puzzle, or b) talk MrMuscle out of joining, then; yeah, we might have a shot at flawless.
(not really, he can just titan-smash superman through it)
But, yeah,worst case we can just give it a serious try and see where and how often we die. Does that mean we're skipping the maze chest tho? Mah
fight money shards! ;'(
Edit: we should go wreck shit up in IB with Arnoodt at some point. (... I guess the 29s can come too... I think Muscle hates MP, but he probably could use either boots or gloves).