Just curious. There are "smooth" overdrive pedals like the Barber LTD, and the DHA VT1, and on the other side of the spectrum, there are "gritty" or "grainy" overdrive pedals like the Fulltone Bass-Drive. I am basing this on what I have read and heard. It seems like the "gritty" overdrives usually have less compression, and have preamp tubes in it, with the exception of the DHA pedals. So what have you guys found that fits the description of a gritty overdrive?