Scott:
My use of the 6500 is probably not like most of those on this forum. I use my board primarily to generate backing tracks in a recording setup, not solo live performance. My biggest concern (aside from quick editing features) is getting the bass track right---e.g., pedal tones, chromatic phrases, passing chords, etc. Hence, I use the pianist mode a lot. I don't recall ever using the one-finger mode. I often will mute the bass part in arranger styles, then overdub this part on a separate track. Auto tracking is still slow to me, especially if a measure has 4 chords moving at a pretty good tempo. I don't worry about full keyboard performance setups for song playlists, since I work on one tune at a time. I'd like to see future upgrades of arranger keyboards offer more of a "workstation" environment for multitrack audio recording. One big plus would be individual outputs for each rhythm part.