Wow, that reminds me of a job a few years back: I had to adjust the DocBook XSL stylesheets according to the desired layout and to also handle certain specializations.
I saw myself (using UltraEdit) looking inside the plethora of files and folders for the right place to add my own little hooks (and trying to understand the original designers intention).
In the end, I had the very strong feeling, that creating an XSL conversion from scratch would have been about the same effort. BUT with the added benefit of much less work later on.
It seems to me that not so much has changed from DocBook to DITA.
- Michael
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