Watch the Pop: Technique 6 online guitar lesson by Robbie Calvo from RhythmCraft
I've capo'd the acoustic guitar at the 7th fret now to play a 3rd strumming guitar part. Play the video and you'll hear me play this new guitar part over the previous two takes. I hope you like how this sounds. I use this capo technique quite a lot when I'm recording in Nashville because it works really well for singer/songwriter demos and of course that also translates to playing those songs live with another guitarist.
In an ideal recording situation I would put my main guitar part in the center of the mix and pan the other two parts hard left and hard right to separate them all. If you have the access to a recording set-up try this yourself. You'll be amazed at just how incredible double and tripled tracked acoustic guitar parts can sound.