Little Darlin' Pal of Mine is a great jam tune, and an example of a song that is in the key of G but starts on the IV chord - C. It's definitely worth it to check out Earl's version on Foggy Mountain Banjo.
Due to this arrangement's "Adam Steffy-esque" stream of notes, it's pretty technical. For it to sound right, all of the notes need to be even. Practice slowly to achieve this.
This is a down-the-neck rolling backup arrangement of Little Darlin' Pal of Mine that sounds great behind vocalists or other instrumentalist's solos.