thanks for the replies on this topic,

when i played on the PA 800 in the shop, i pretty much went through all the styles that are important to me and i was 100% satisfied with the fills. I never once noticed any glitches or issues and i was actually looking for it because I have heard of people mentioning on this forum about Korg being infamous for its non-smooth fills / breaks.

but like i said, i was completely satisfied and didnt notice any issues with the styles that were important to me.

cheers,
Nick