To be honest, I have absolutely no interest in signature models from any artist or manufacturer and will never buy one. People buy them and think they're getting exactly what the artist uses. They are rarely, if ever the same. I remember reading an interview with Marcus Miller. He had a signature line of Fender Jazz Basses. He said that as soon as he received his basses from Fender he would send them out and have the pickups and preamp changed. I spoke to someone at a guitar company that had several artist models. He told me that it didn't cost the company more to make them, the only difference was that they had to pay the artist for using their name. In my opinion, signature instruments are just a way to charge more for what is basically a stock instrument. They're are not going to make you play or sound like the artist.