Drop thumb pattern for TTMOE cover of Joni Mitchell's Come in From the Cold

Hello! Can anyone help me figure out the drop thumb pattern The Tallest Man on Earth is using to play his cover of Come in From the Cold, linked below? He explains the tuning and the chords are straight forward, but the pattern is evading me.

The song starts at the 29:00 minute mark.
youtube.com/watch?v=37uYSek4r-0

Thanks in advance!