Trouble is, those 30 notes are no problem, it's the tons of CC's and sys-ex that try to get sent out BEFORE the notes get sent that's the issue.

One sys-ex, unless it's a complex string, yes, no problem. But nowadays, a ton of the style editing, offsets, things like that tend to get sent as sys-ex, and can add up to a ton of stuff if a lot of work on many Parts is being sent at each Division boundary.