I'm curious. I recently purchased a Warwick Fortress 1 4-string fretless, and love it! (Getting GAS for a Warwick 5-string, now!) Question: I've been looking at all the 'wicks offered by the company, and the names are pretty interesting. I can understand cool names like "Corvette", "Streamer", "Buzzard" (I really like that one), etc., but does anyone know where they got the name "Thumb"??? Does it actually refer to it's style and use or just a name to use?