Watching the pt2 video, I've realised that, because some styles will use the utility tracks, loading a new style could/would set a utility track up with a new instrument/musician, presumably ousting whatever was there before, which could be a track of my own. (Sorry, I'm on a Linux at the moment without my Wine install so I have no place to try this).
The obvious question is, Is there a way to stop that happening or warn about it, and/or is there a best practices way to avoid it (using the higher number tracks for my own stuff is an obvious candidate)?
Heh ... there's a Dilbert I love:
If "Best Practices" is what everyone is doing, then it's the same as mediocre.