Bad Ground

I just ran a 6-second (simulation time) pacing of a model, with 20 beats total. When I went to check the results, I wasn’t happy with what I found:

It seems that the ground I placed in the bath below the model caused a problem with the uniformity of conduction. I wish I’d noticed that before burning a day and a half of CPU time.

Live and learn, I guess. Back to work…