You're right about Test For Echo, but Driven is definitely in normal E standard. That main riff is all pulloffs to an open A string, and the riff after the bass interlude ends on an open E.
You're right about Driven...that said, there is a low-sounding D chord during the choruses but that's handled by the bass. It's a fun song. We used to do that one, Half The World, Virtuality, and Dog Years.