Re: Slide Questions...
I like brass and glass. My favorite slides are made by Bigheart? I think???
I like the glass that's closed on the end, is slightly slimmer than average, and they come in blue, red, purple etc. I use my pinky, so I like them to be as small as possible. I was using the white/flame ceramic ones, but they'd break anytime I dropped one, so I switched to glass.
For electric slide with gain, I tend to think that brass sounds best, since it doesn't let all the small transient noises come through.
For awhile, I was playing a lot of slide in a bluesrock band, and never knew what to do with the slide when I wasn't using it. My drummer and I used drum hardware made for attaching a tambourine to a drumset, and created a clamp with a rod sticking out.
I'd attach it to the mic stand before the show, and always had a place to put the slide.