Robert said:
The Rodent had the Mutate selector on the 3rd notch. All the other knobs at 1 o'clock, Ruetz mod switch was off.
For those of you reading this who aren't familiar with it, here's the pedal that Robert is referring to:
It's based upon the BYOC Mighty Mouse, which is a souped up ProCo Rat clone circuit. I then add several enhancements of my own to create the Rodent.
The Mutate selector is that top knob, but the photo doesn't show the labeling. It's a 6-way rotary switch that gives you 6 different signal clipping settings. Position 3 that Robert used in the video clip uses a pair of J201 JFETs to give a warm, bluesy distortion character--perfect for the blues soloing Robert was doing. SVL refers to positions 2 and 5, both of which use a pair of red LED's; position 2 is a harder edged distortion, while 5 gives a softer overdrive type of clipping.
The "Ruetz" switch changes the voicing of the pedal substantially, dropping the overall gain and flattening the EQ profile. For players who find the stock Rat voicing a bit too mid-rangey and aggressive, this tames the mids, brings up the bass end, and smooths out the tone. I like it because having it as a switchable setting doubles the Rodent's voices from 6 to 12.
BTW, just like the original Rat, the "Filter" control
cuts treble as you you turn it clockwise, rather than adding it, as most tone controls do.
More details on the pedal are posted
HERE.