Running resistive casing

Hi Mike,

Apologies for the late reply! I neglected to pin software versions with these earlier repositories that you mention here and in Versions of packages. I will go back and work to pin those.

However, if you are interested in getting up and running with some of the casing simulations, I would recommend using the code that we distributed with the recent leading edge issue: GitHub - simpeg-research/heagy-2021-tle-casing

These notebooks are much more up-to-date with the latest advancements in SimPEG.