Note that the page has already been started: => How to tailor bundles

Please check the notes from 2015-09-10 Doc coffee.

Probably also requires an update on Creating a custom bundle

copied from wiki page "2015-09-10 Doc coffee"
Best practice:
Both adding and excluding work fine. Choose the way that involves least work.
If excluding is less effort, do it.
If adding is less effort, do it.

Generally:
Try to achieve smallest possible POM (which helps maintaining it)
Excluding modules from your own POM is better than commenting out modules from our POMs.
also if excluding: have your own POM
would be nice to have an Maven archetype for such "top down" approach