Ok, how much do you move back and forth to get vibrato when you play slide?
For instance, when you're at the 12th fret, and you add some vibrato, do you go down half way to the 11th fret, and then up to about half way to the 13th fret? Do you go down and up more? Less?
I think my vibrato is too fast and narrow, and I'm trying to get an idea how wide it should be...