1. A system comprising:a display; and
a processing unit configured to:
receive torso-surface potential signals from a plurality of electrodes, wherein the received torso-surface potential signals comprise torso-surface potential signals sensed during delivery of cardiac therapy to a patient in accordance with a plurality of different therapy parameter settings,
for each therapy parameter setting, determine, for each electrode of the plurality of electrodes, a torso-surface activation time based on the torso-surface potential signal sensed from the respective electrode during delivery of cardiac therapy in accordance with the respective therapy parameter setting, and
present, via the display, indications of the torso-surface activation times for the plurality of therapy parameter settings.