Hi Rikki,
Incidentally, I loaded the Euro Dance pack and I was correct in thinking this would solve the problem with the DJ Styles from the S975 Plus category, they sound perfect now automatically assigning the bass and drums to the styles without doing anything. I think the Latin ones there also use expansion sounds but that's a free download I think, or was. The other stuff I am not too bothered about as I think it's oriental. But the point is I think loading some of the expansion packs would save on some tweaking from your older keyboards.
Thank you Danny, I’ve never used any of the paks or sounds, I’ll start checking into them after I finish sorting thru my duplicate styles.