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3:19 ALU upper register 3:28 ALU lower register 4:55 Copper upper register 5:04 Copper Lower register 6:38 ALU soft playing 6:51 Copper soft playing

I bought an SM solo mute, half aluminum and half copper, with the idea of ​​the best of both worlds... have you tried something like that?

So the main difference is that the Aluminium one buzzes more easily with less force right? Does it means that the aluminium ones are more responsive? Which one have less resistance?

「あなたのコンテンツはとても感動的です」、

Do you have ADHD my brother?