Again "The Song from Luck and Maps"
As far as i know, luck comes in action during the digging process.
If the TH is part of a party, does only
a) his luck counts
b) the luck of a random member
c) or should he not be member of a party?
When the chest is (see options), is it save to switch to a more stable outfit without the luck weight?
a) when its up, before lockpicking
b) after lockpicking before RT?
c) after remove trap before opening
d) after opening, before picking items