They ruined by attaching that "other instrument" to it! If it was 12 string guitar and bass I'd be tempted more, but with Gibson it was either 6+4, or 12+6 or in the case of that Elvis doubleneck 4+6 string bass, I've never seen a 4+12 string.
As a bass player, I sound better on a 12-string because I don't overbend the more tense double strings. An electrical six string always sounds out of tune with me the first few minutes.