I once had a Fernandes Vertigo Bass (these days, they only make it as a guitar). They made these for a few years in the U.S.A in the early '90's before shipping them out to be produced in Korea... The way you can tell the difference is that the American made ones have a single humbucking pickup. The Korean ones have two soapbox pickups. Huge difference, the American made ones are awesome. The Korean ones - not so awesome. Well, I had an American made one, it was modded out. Had the frets removed and the neck re-radiused so it was smooth and had no burs and played smooth. Also had a hipshot thrown in for a quick D-drop. Went through a period where I was only playing my 5-stringers - and made a very bad decision to sell the Fernandes - the moment I sold it, I knew I had made the worst sale I could ever make... I have had and sold a Korean version since - no comparison. I have searched for an American version - no where. THE most unavailable bass ever. Anyone has or has seen one for sale - let me know - you got a buyer!