You're right, the complete serial number is 90S6027 for this SLSB4
top: Flame Koa
body: Mahogany
neck: 3-piece Maple (long scale, unusual for Spoilers)
fingerboard: Ebony fretless
birthday: July 6, 1990
Originally sold to: Arnoldt Williams Music
2 previous registered owners on file
There is no record of repair for this bass.
If you wind up getting this bass, please do
register it to keep the file current.
The long scale is not typical for Spoilers, most were medium scale. On a 4-string it shouldn't cause a balance problem. Also, Koa is one of our top choices for fretless tone, it's very warm and smooth. Have you had a chance to play it yet?