*** Final Update...I Hope****

The unit arrived on Friday and I installed it this morning. Seems to be working correctly with the output voltage at 14.4 volts.
I will keep an eye on it but hopefully the issue has been resolved. I was given the option to have the unit 'jumpered' so that it is in "Li" mode permanently and I had them do exactly that. I will say that WFCO was a pleasure to work with and I'm glad I called them.
I will need to reconfigure my Smart Shunt now that the unit is working correctly but that should not be a big deal.

Thanks for following along and for all the comments.