Has anyone tried this? Or can someone tell me if it will work or not? "If you already own a great sounding valve amplifier, you'd want to do the Robert Keeley modification on this pedal: Simply remove the diodes marked D6 and D7 on the PCB, and voila! another gain stage, surprisingly smooth and transparent. This very simple modification removes that familiar Boss harshness, gives you greater range and a much more musical, open and dynamic sound. With drive on full, it takes on an almost fuzzy character, while retaining clarity and dynamics."