Maybe it's just me, but I have the feeling the bass seems to be louder when its playing in four.

I use this RealTRack style a lot and during the first and last chorus when the bass player is basically playing in two it sound just fine, when he plays in four it appears to be louder.

Now, maybe he's not playing louder, it just seems that way. Perhaps someone might want to check this out.

Dave Horne - The Netherlands
http://members.home.nl/davehorne/

Band-in-a-Box 2015 MegaPAK Upgrade with RealBand