One thing I noticed a LOT, when I moved from the G1000 to the G70 was the amazing speed up in voice response. On my G1000, you layer together two stereo sounds (in other words, each note triggers four voices) and play percussive sounds (marimba, glock, etc.) and start hammering big chords rapidly, you could hear a touch of subtle 'flamming' as the engine struggled to keep up with the input. It's a common flaw in most older gear... Kurzweil, Yamaha, Korg, they all suffered from it.

But my G70, you stack FIVE stereo voices together (ten voices per note) and pound away to your heart's content, not a trace of flamming. Perhaps an extreme example, but in practice it equates to feeling more 'connected' to the sound, even when using just one voice.

Not many have made any comment about this re. the new Korg's (but it is something a lot of slop players don't notice) but it MIGHT be worth checking out. It certainly has helped make me play better on the G70!
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An arranger is just a tool. What matters is what you build with it..!