And that EVENESS in Yammies Live Grand is evidence enough of how much they really cheated and how compressed and stretched that piano patch really is.

Perhaps the ONE piano sampled for the G-70 has more "noticable natural occuring inconsistency" within one area and not others. I've played MANY acoustic pianos where inconsistency was way more present in one area of the keybed.
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.