The Guild models of the early 1990s featured three major configurations. Of the three, the "Signature" model was closest to May's guitar, although it was made of mahogany (body and neck) and ebony (fingerboard) and sported Trisonic-styled "Brian May" pick-ups made by Seymour Duncan and hardware (including the unique bridge) from Schaller. The "Special" model featured a stop-tailpiece rather than a vibrato, the middle pick-up was moved back next to the bridge pick-up for a humbucking look, and the back of the guitar had no binding. The "Standard" model featured a more common Strat-style 5-way pick-up selector switch, a longer scale neck, and a deeper headstock angle. Andrew Guyton made May a double-neck version, which has never been a production model.