The new, shorter (3/4" shorter) belt is on, and things seem to be working as they should. I will know in due time if the belt holds up.
Here is the newest belt I ordered:
https://www.amazon.com/gp/product/B004TARR9Y/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Attached is a photo of the...