The following modifications can be made to the pedals in order to improve performance on some high output Basses.
1. Sub Octave Plus.
R9 changed from 22k ohms to 220k Ohms.
R47 changed from 47k Ohms to 100k Ohms.
R50 changed from 10k Ohms to 1k Ohm.
2. Envelope Plus.
R9 changed from 22k Ohms to 220 k Ohms.
R45 changed from 22k Ohms to 47k Ohms.
R49 changed from 10k Ohms to 1k Ohm.
3. Drive Plus.
R7 changed from 22k Ohms to 220 k Ohms.
R33 changed from 47k Ohms to 100k Ohms
R37 changed from 100k Ohms to 1k Ohm.
4. Dual Band Compression.
R7 changed from 22k Ohms to 220 k Ohms
R16 changed from 47k Ohms to 22k Ohms.
R44 changed from 33k Ohms to 68k Ohms.
R47 changed from 10k Ohms to 1k Ohm.