Well after listening to alot of Allman brothers, I started to wonder what a slide used on a bass would sound like. I tried to do it, but since im not very good at the slide to start with, It sounded really bad. I want to know if anyone here has played with a slide and made it sound good or knows any bassist that use a slide and sound good.
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"I am the Lizard King, I can do anything" - Jim Morrison
As a guy who plays slide guitar on the side, I find that playing slide on a bass is difficult.
First, the action on my basses are too low for me to play slide and get the right sound. Slide guitar sounds much better with high action.
Two, the bass strings are heavier which results in wider string vibrations. That seems to make the slide sound "clangy". Slide may sound better on my six-string since the strings are a little slimmer, but I haven't tried that yet.
It doesn't mean that I am done trying to make slide work. The key to playing slide is to use the fingers behind the slide to mute the strings. Think of the slide as a moveable capo. Rest the slide on the strings, but don't press so hard that the string hits the fretboard (this is why high action is good).
I haven't found a way to use it to groove. When I do really need to slide for noise effects, I use my microphone stand.
I've got a Shubb Pearse SP2 steel that I used to use when I was into lap steel playing and rigged my Les Paul up with a nut extender, I'm starting to mess around with using it on bass since my strap is low enough to let me lunge forward to get it kinda in a lap steel position and then stand back up to start the heavy(main) part of the song.
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Basses: Warmoth 5 string Jazz, El Nino(J/MM "Geddy), Michael Kelly ST4 acoustic bass, SX Jazz fretless
if u 'bow' the slide on the strings and add lots o' fx you can get a pretty eerie sound 
NO!!! NoOOOOOO!OO!OoO!OO!O!
