When the schematics appeared online, it was confirmed that the pedal was indeed a completely original design. The drive control contained a highly unusual blend feature that combined clean and overdriven signal, so at low gain it acted as a boost, but blended to pure distortion at higher gain settings. This fixed the compression issue Finnegan had with the Tube Screamer. With clean signal blended, the sound would retain the full dynamic range of the guitar. It also allowed for very natural picking dynamics, where the guitar would clean up by picking lighter and get grittier as you dig in, much like a valve amp on the edge of breakup.