Tunefox
The Clever Way to Learn & Practice Bluegrass Music
This is a great cross picking arrangement that dances with the melody while outlining the chord changes. There's a few great lick options to check out here. Remember to use the focus feature to practice tough measures and licks. The tempo slider is also an asset for practice. Play at a speed you can handle. Slow and steady is always better than fast and sloppy.
This one sounds great when played slow and with the swing feature engaged. Give it a try. You may like it even better that way. Getting a handle on how to play the same song with straight time or with swing time is a great exercise and challenge. It will really help develop your time feel as a player.