for what it's worth, being a newbie to the
slide I did try some of that great floor polish stuff out, you know the vestapol. It can clean the chrome off a trailer hitch and sounds cool too. I asked Lightning about it a few months ago. I didn't have a fretboard map in it but plinking around you can find stuff quick. However, I've enjoyed using Drop D tuning the most. At least I know where I'm at.
I really enjoy hearing all your testimonies