I checked and, sure enough, page 13-8 just says "KAYABA SS-8 or equivalent" on the PDF copy. I thought they released supplements instead of updating the manual itself, but I guess not.
Thanks! Now I know where it came from. No more wondering.
I saw in your original post about it (now quoted in the OP) that it was the 2008-2009 manual, which is exactly what the PDF claims to be.
I wonder what other little things Kawi fixed/updated without saying anything.