I have a 1962 Kay M-1 that looks like a wreck but is at least playable and reliable. Here is my question: Are there new plywood basses that are noticeably superior to the M-1 in tone quality or any other factor? Or, is a carved bass the only step up? Almost all of my playing is jazz pizz, and I am always amplified. My reasons for considering another plywood bass are largely practical, but I don't want to buy a new bass that is no better than my Kay. Actually, this condition is decreed by my wife, who advised: "If you go out and spend thousands of dollars on a bass, and it doesn't sound better then your Kay, then have a nice life sleeping in the basement forever."