I downloaded the ADBSG course in early January. I've been working on the standard tuning song (Up and Gone Blues). I have the notes down as well as the rhythm. I'm amazed that this single song has many, many blues licks that are both familiar and seen in other songs. Getting this song down will provide a nice inventory of acoustic Delta blues licks that can be added to other songs. Nice choice for a starter. At this point, I'm trying to smooth it all out into a presentable performance, but, I think I need to improve my muting skills. I use my palm as well as individual fingers to mute strings after picking, but what I need to master is muting all the unwanted strings when I move the slide up or down. Sometimes, I get it right and things sound good, but mostly I create a good bit of unwanted noise even when I pick only the notes I want. Mostly, I think this comes from behind the slide (between slide and nut). I attempt to rest a single finger behind the slide but get inconsistent results. Is this just a matter of practice or are there some tips and techniques that you might suggest. Thanks, folks.