Well, not necessarily. I figure that just because I know I screwed one thing up, doesn't mean it's directly related to or totally responsible for the overall outcome. Hence why I asked folks in the know what should happen in that scenario.
But to answer your question, it doesn't sound like the tone is on zero to me. But turning the pot doesn't seem to change the sound. Oddly enough, I discovered the screw up when I went to turn the tone down after playing a particular riff.
Not actively updating at the moment, but an interesting site nonetheless: HollowbodyBass.com