Regarding the Copper tarnishing, Copper metal tarnishes by default, so it will eventually start to tarnish. We used a different clear coat on the SP1000 and a different application procedure than what we did with the AK380, so there is less wear of the clear coat like there was with the AK380. All units that we have for over two years and are handled a lot at shows, demos, etc without cases have shown zero signs of tarnishing. Same procedure will be used on the new SP2000.
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