When I get a chance I will change up some of the default styles and use the new "Brush kit" and "Brush perc"..with a newer bass to show tightness..

So far the Ketron "Audio" drums have the edge, but I believe the BK5 outshines the Ketron "Midi" drums...

Maybe you can post a few samples of Ketron MIDI drums..

Since no Korg or Yamaha have posted yet..my experience with the Korg and Yamaha model I have owned...the newer Roland does beat them for realistic sounding drums..I am comparing to my Tyros3, PSR2100, PA800 and Microarranger..