Whether a leg that ran out of time should hand off: only when it made progress (so a stuck case can't loop), or began after its time was up (a test queued behind others), and legs remain.
Answers this leg gave.
Optional
The leg began with no time left, so it tried nothing.
Answers left for a later leg.
Whether a leg that ran out of time should hand off: only when it made progress (so a stuck case can't loop), or began after its time was up (a test queued behind others), and legs remain.