I've dialed in a really nice tone with the Tube Drive 3-knob, using HV tube clipping and EQ tweaks. It's really on par with my Bogner Ecstasy Blue and Wampler Triplewreck, but no substitute per se. I don't think I have the ears, or at least the talent in the art of EQ (or patience!), to match the tone signature of those pedals. This is why I will not likely ditch my analog drive pedals. It's much easier to just use the pedal than wait for FAS to make an accurate model or me to figure out how to tweak the drive block accordingly. The Triplewreck kills, I'm totally diggin' that pedal right now! My drive block is awesome too, the clarity and dynamics are almost as good at the Ecstacy Blue. My drive block has a "brighter" and slightly "thinner" character when I "clean it up" by lightly picking or backing off on the guitar volume. Not bad per se, just different. The Bogner's "cleaned up" tone sounds more like a clean amp setting, warmer with more "body", without dulling the highs.