To my knowledge, there is nothing on Ketrons remotely similar to Korg's Guitar Mode, or Mega Voice technology.

Yes, they had pretty good basic sounds, and some good style programmers, but there's nothing in the Ketron that revoices your chords to guitar specific chords and strumming patterns. Authentic guitar playing by the style section is just one of those things that, once you hear it, you realize just how OLD everything else has gotten

That's not to say the SD-1 isn't a great arranger, just that times HAVE moved on. Have you even TRIED a PA2X?