Hi @ebelew - Sorry for the slow reply. I love how you’re a very active GeoDrops user. Please keep your questions and comments coming! 
And sorry the updated User Guide is taking us a while to publish (we’re juggling too many balls and context switching too much. Spring is a super busy season for all of us!!)
For now, I’m going to post the answer to your question in the other thread that you’ve started here instead: Soil Moisture Relationship with GeoDrops
Thanks,
Lawrence