The advantage of running a mixed distribution is that some packages are not found in stable at all but are foound in testing or unstable. If you have everything locked onto stable, bastille is something that will never show up in your available list for download. The problems I'm having with bastille occur in all versions of linux I've tried so far that talk they're not restricted to debian. I read about bastille being available for debian on http://www.bastille-project.org and wouldn't have tried a mixed distribution if it had been found in the stable section at least not this soon out of the box anyway.