I just realized that I can get really nice harmonics if I pluck the string above the nut. Works great with whammy bar tricks on the G string.

Anyone else do this? Is it a known technique?
Yeah. Eddie Van Halen uses it in the very beginning of Running with the Devil, I think.
Quote by Soccerguy
Are you saying you pick it with your pick kind of over the first fret?

Left hand goes over the low E and plucks one of the strings between the tuning peg and the nut.