I've refreshed the Head in the Game mp3 on this site. The Chapman Stick has been retired in favor of the Carvin 5 string bass, processed using Amplitude 3 the Line6 POD 2.0.
I think it is much improved. While I was mixing the bass I improved the balance of some of the other instruments (most notably turning down the jangly rhythm guitar in some places).
Updated 14.April 2013:
Also re-did some of the drums. And re-recorded the bass. And all the guitars. And the lead monosynth. Then I remixed it.