I've noticed that when I play slide on the low E string the slide actually frets the strings, so I get a glissando effect instead of a slide effect, and if I place the slide more lightly on the strings, I just get a fretbuzz-like noise. The slide I have is quite heavy and thick, I bought it to do some long, sustaining David Gilmour-style stuff, but now I'm trying to play faster slide riffs (Loser by Beck if anyone knows it). Can I just buy a thinner slide to stop this problem, or do I need to raise the action? I don't really want to have to do that...
How low have you got the action (at say the 12 fret). That counts for quite a lot usually.
I'm not sure exactly what the action is, it's pretty standard height and I haven't changed it since I bought the guitar. I'd rather not have to raise the action because it's my main guitar.
You could try playing it like pedal steel guitar, cos its easier to slide it like that opposed to the usual method.