Fran I just don't have the skill for that... too old to unlearn bad habits! Roland, and surprisingly Casio(!) do exactly what I want, that's why I tend to favor those brands. Being able to play one-finger majors and two-note minors, 7ths, M7 in any inversion facilitates a lot of fast chord changes. Slash chord recognition is simple and logical too. For me, more keys and more hand movement just create more opportunities to make mistakes.

Chord fingering is one thing about an arranger that you just can't change. None of the manufacturers has programmed a lot of customizability into this all-important feature. I like a lot of the Yamaha styles and features, but their "pro" AI Fingered mode is useless to me. So here in my living room, I'm using the Roland Chord Intelligence built into my BK-7m to drive the style engine of my Tyros 5. I often wonder if I would be happier with a BK-9. Too bad they're so rare!