I think the dynamics recorded from the Yamaha, has less dynamic range than other manufacturers.. I am sure the player recorded the sequence with the dynamics optomized while listening and playing the Yamaha. This would have a different dynamic performance than if the same manner was recorded with a Roland , Kurz or Ketron...Others have also mentioned artifacts in certain models;chorus,vibrato,shimmering.. this may be due to recorded controls or aftertouch from the Yamaha that is more sensitive when played on other instruments...So it may be unfair to be critical to models that differ from the Yamaha...I thought the SD1 sounded great other than the dynamics in certain spots. If it was recorded on the SD1, the player would have a different feel while recording..Likewise the Kurz2600..One last comment, don't forget the 4 year old G1000's competion was the Korg i30, the Solton MS100,and the Yamaha 8000...The best Roland arranger pianos are in the VA7/76 and the E600, and if you want to include the FP3, it may be the overall winner....I like to add that all the "new" keyboards have great pianos and a matter of taste for the"best" title..Fran