When I attended the Denver show back on 11/4, my friend and I were at the front of the railing on the side of the stage where the stairs and "guitar world" was, where James and Rob would switch instruments. About 5 feet in front of us sat an acoustic guitar mounted on a stand. During Down's set, the guitar tech came over and packed the guitar away into one of Metallica's legendary gray road cases labeled "Unforgave". I'm sure that tech was glad that they finally used the guitar after unpacking it, setting it up and tuning it for all the shows so far.