The secret is to not do it \o/
When I did it with 1-2 people we remade at the first room, but when there was a full party we'd remake at the second.
Personally I didn't see a difference in gold or xp.
I've been doing both plasma and mega maze and lately I've been liking mega maze more. As long as someone sweeps the middle route for mobs, grinding out XP is so much faster than plasma. Plus, you still make a lot from liquidations.
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