Since you divided it into 4 stages.....

I use BB in stages one and two.

I write the song and build the structure and arrangement in BB. Then I take the tracks I need into my DAW. It's during this stage that I'm deciding if I want to add tracks that are not native to the style and I use BB to create those and drop them into the project too.

Once I have all the tracks, it's off to the DAW where stages 3 & 4 are completed. The use of BB in those stages is extremely rare. But if I find a certain track is not working or I really want to hear something else in the project that isn't there currently, I will backup to stage 2 to create the new track. But I don't consider that using BB in stage 3 or 4.

That's how I do it.

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.