From what I can see... Koorg is still using the same style format.
Just email Tony the style..
Obviously not...
PA4x styles have many more parameters they remember then lower level Korgs... and a few options not available in the older styles...
The good thing is, Korg never put the real differeneces on paper for the users.. Luckilly the PA4x can still read PA3x styles. So this makes a more advanced style format actually a good thing, since they are backward compatible (with some edditing )