I think that 90% number is because the product is called Band In A Box..... and real band is seen as kind of an add-on at no extra cost and essentially people don't explore it's capabilities. You got to admit, there's a ton of features in BB. In fact, I probably don't use more than 20% of the capabilities of both BB & RB. For what I do and how I do it, those things are not needed.

As I've said before I use a 3 step process in my writing.

BiaB is my scratch pad. What I use it for is to find a style and a groove and the key, as well as tempo for the song. I use it knowing that what it produces for me is not necessarily what I'm going to end up with in the final product. It gets me a basic starting point and an idea as to the general direction the song can go. I'd venture to say that 99% of the styles I use in BB are not midi but use real tracks so when I change things, it takes a few seconds to regen the project.

Once I have that done to my satisfaction..... key, tempo, style, and the structure of verses and chorus, I will save it and move to Real Band.

In Real Band..... I let it generate the tracks for the style. I then have a quick listen to see where I'm at. If I like it, I generate the extra tracks BB couldn't and save them to the project and into a folder. I often use the first generation of the tracks. A few times I have used multiple generations of the same track but not often.

I then copy the tracks into Sonar and that's where I do my editing and adding of live tracks. I use Sonar because I know how to do things in it and it's easier for me to work with the live tracks.... punch in/out, splicing and automation.

Anyway... that's my 2 cents. The way I see it is use whatever you want to get the results that make you happy. Nothing else really matters.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.