For me it'd be with dealing with changes. When something changes... Difficult to focus until it's been sorted out and I have a rough idea of where and how things will move.
Having said that... Often I'm the one that goes "Meh. It doesn't matter too much. Just a case of waiting to see" but I think that's because I feel that it's pointless to stress over these sort of things.
I remember somebody mentioning Ps are more comfortable with uncertainty than J, who can handle it... but they won't be happy in that state.