Hi Rustyspoon# (Mike),
You're off to a good start. I'm not sure I would have explained things the way you did but I certainly understood what you mean.
If you're going to rely strictly on the Band-in-a-Box program for instrumentation you're way works but you can improve the process.
Muting and unmuting tracks works but limits the number of RealTracks you can use. This is where using your keyboard's F5 button opens up a bunch of possibilities for you. Move your cursor to any bar then press F5. Look toward the top of the F5 window (in the red box). Notice there are button to clear RealDrums and RealTracks as well as buttons to select RealDrums and RealTracks. There is also a button to change style selections. Think of the possibilities.