After posting this article several days ago, we got an email from somebody who has seen SSS's guitar strings changed...and he was able to clarify all of the string gauges needed. We've fixed the article accordingly.
Seasick Steve's "3-String Trance Wonder" guitar is the stuff of legend. The guitar was originally given to Steve with only three strings left, and he's kept it that way ever since.
Seasick's guitar is nothing but an old Japanese hollowbody guitar from the 60's, most likely from the Teisco factory. (The body is the same as a Teisco EP-7.) It probably had two pickups to begin with, but now sports a single 1950's Harmony pickup duct taped to the top.
As a hardcore fan, I had to make a version of this axe for myself. Luckily, I had almost the same model in my arsenal, a Sorrento hollowbody of the same period, so I set up the strings just like his.
Here's how to set up a 3-string Trance Wonder
(String gauges and tuning, low to high):
Tuning: Open G: GGB (middle G is one octave higher than bottom)
Strings are .049w, .028w, .018p. from a pack of D'Addario EXL115s.
One of the unusual things of the Three String Trance Wonder is the positioning of the strings. There's a space between the first and second strings.
I wanted to string my SG inspired using Seasicks tuning, but the guitar got finished before I got the strings. I did string up the paddle slide guitar with it though.