That's not what I meant.

I use BiaB to generate RealDrum tracks (and other instrument tracks). These tracks are then imported in Cubase. I now have a raw version of the song, ready to be edited in Cubase. OK, back to the drums.
The thing with generated RD tracks is that sometimes some hits and fills just don't sound right in the arrangement. Now with MIDI-drum-tracks it's no problem; just edit the parts and your new hits and fills will sound exactly like the rest of the drumtrack since they are played by the same softsynth or samples. RD's are, like you said, wave-files; actual sound, not MIDI-data. If I want to add extra hits and fills to a drum-track I can create an extra drum-track in my DAW to play these hits and fills on a MIDI-controller. If I would use a sample-set from a different kit than the RD's are played on, you will hear the difference in sound between these two drum kits. If you knew which kit was used in certain RealDrum styles and you would have a sample-set of this particular drum kit, you could add fills and hits to your song and have them blend in with the generated RealDrum track.

Mike
www.mikewever.nl