There is one technique I haven't seen how to do yet, and was hoping it would be discussed somewhere. I usually hear it at the start of a song, or before a heavy chord. It's kind of a heavy, curving, sweeping down sound before an opening chord, I believe Eddie does it before his first chord on Eruption except that it mostly stays the same note on the album and doesn't sweep down (is this the error he says is in the song?) On the tab I've seen, it was written as just a \ before the chord, but doesn't say what the original note was. I've tried various slides from down the neck and nothing sounds anything close.
Thanks for any suggestions,
Dan