I kind of addressed this in the other thread.

Essentially, you can add measures to the project and/or shut off the automatic intros and endings function..... and build your own.

This is easy to do in Band in a Box. I use this to get the structure of the song the way I want it from the first note to the last.

If I plan on playing a part myself..... I will have a drum track there to keep me sync'd to the timing. In my DAW, I can always mute that timing track later. I use volume automation in Sonar to open up the areas I need to drop in a solo or a fill, for example.

Do all your preplanning for the song..... structure, style, tempo, key, verse, chorus, bridges, intro's and of course, endings, in BB where it's easiest to make the changes.

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.