hey all, i'm a HUGE stickler for OD pedals, and i think i found my holy grail! i've used my Vstack mostly for my guitar rigs, but one day, while going thru some pedals, i thought, "why not for my bass?" and HOLY CRAP, awesome OD sounds! from low warm gritty affairs to driving, rockin' out high gain sounds, its not as ratty or flubby as my old fulltone BassDrive, which i thought was horrendous. rather, the Vstack has richer, more grindy, gravelly sound that holds together and doesnt suck out the low end. at times, it does seem similar to the sansamp, but the Vstack has what seems like a deeper more involving sound, and it has a more apparent ampeg blowing up kinda sound that i could never get w/ the stiffer sounding sansamp. heck, it makes the sansamp seem almost 2D. and it records beautifully, too. its actually a "marshall in a box" sim type pedal for guitar players, ala the sansamp, but again, i think the Vstack takes that tone to higher levels. i'll try and get some samples up. but bottom line, i highly suggest this pedal to anyone who's not too happy w/ what's out there in terms of bass OD's. its literally stopped my search.