I couldn't find any information on this circuit - I found the original schematic on the free info society website but literately 5 minutes ceaseless searching on google brought up nothing about the MXR version. Anyway I redrew the schematic because the original was terrible, then laid it out and built it.
it sounds pretty cool. unfortunately I ran out of space to upload a sound sample to "soundcloud" but I imagine it sounds similar to the Craig Anderton version.
anyway enjoy.
