for years, i've always been the type that never uses a pedal on my bass. in the early days (early 70's) i used two pre cbs fender showmans with JBL cabs, and frankly my intention was to play clean but the amp's broke up (and really super nicely). nowadays, if i want a little hair, i just use a lower powered vintage tube amp and push it a little to get some natural breakup, but generally i go for a loud and clean type of tone. there are a few classic rock songs that my band covers and i've been on a quest to find the perfect pedal to get my more modern, yet somewhat old school sounding, high powered clean rigs (like my SVT7pro/215 3015 cab) to have some grit for a couple of numbers. i used to scratch-build some of my own overdrives and fuzztones back in the 70's to occasionally use when not using my 60's FuzzFace, vox tone bender, mosrite fuzzrite, or jordan boss tones. in the early 80's, i also built a rackmounted unit with 8 of my own tweaked vintage fuzztone clones in it, including one of them being a tube one (i'll have to dig that one of storage out next week)...... lately, i've kinda been on a quest for one that does exactly what i want, but i'm not quite sure if i've found it yet, since dialing in an overdrive or fuzztone, to me, is practically an art unto itself. here's a couple of pics of some of my current ones (not shown: vintage 70's mxr distortion +, fulltone '70, 60's maestro FZ-1) for me, alot of them sound good as a fuzz but it's pretty hard for me to get a tone that closely simulates an overdrive tube amp at the flick of a footswitch. while really good on a guitar, alot of them are just too dirty for bass, and most of them lose quite a bit of low end punch (too much color). right now, my favorite is the fulltone '69 for a heavy, punchy Jack Bruce type of dirt. now that i'm kind of on an overdrive binge, i realize that tere are 100's of them out there now, and i have a duncan twin tube blue and a catalinbread SFT on the way to me which i'm looking forward to trying by the end of the week. what i've found is that while someone will love and recommend their favorite, another person will find it not to their liking or even unusable, since the many flavors of distortion is such a specific/specialized type of thing. i mean, i can get great distorted tones out of my sansamp PSA-1, but it's a rackmount preamp and i want to just get it out of pedal for convenience' sake for a few songs .