I use an overdrive into my SVT 2 Pro to get a high gain grit. I have a Keeley modded RAT and a Bass-Drive, and the Fulltone has been winning. I want to tweak my board again, and debated the Darkglass stuff. I wouldn't mind something with more midrange. I always liked the low end from the RAT, but I did the 18v on the BD for the juice. How would the B7K compare to a modded RAT?