taken from anolog mans site
"A good friend of ours suggested the old Marshall Blues breaker pedal might work for Jim, so we found one on ebay and I had it sent to Jim who said it was pretty good. So I got another one on ebay and modified it quickly with some improved parts for a baseline test. I brought it up to Woodstock and Jim's sounded better, I was surprised! Then I opened Jim's up and saw that it was already modified heavily!! I thought he was playing a joke on me, but he just laughed, someone sold it on eBay like that. I tried those mods but didn't like them much, so we totally redid the circuit with different diodes, chips, capacitors, treble trimpots, modes- pretty much everything was changed. And of course the KOT is two pedal circuits in one box. So our KOT pedal is not much like, and does not sound much like a BB pedal anymore. Especially the clean or distortion modes are different, and the higher gain option changes it even more, making it more useful throughout the DRIVE knob range. We used the higher gain KOT circuit as the base for the Prince Of Tone which came out in 2012, and improved the DISTORTION mode also on the POT."