Not sure whether there is a manual, can't remember whether one came with mine but, to be honest, the info on his site is a useful starting point and the rest is trial and error. It's a bit of a learning curve but IMO, there's no substitute for spending some time learning settings intuitively..
Vol: Muchos on tap.
Gain: Useable from end to end
Mood: From overdrive to distortion to fuzz to greasey spit to octaves on the wound strings to trumpet ,french horn and trombone splat.
Bore: From Fat to skinny
Range: sets the mood knob range. Hi or Lo
and Top: 3 way selectable presence