One of our customers recently experienced some pain due to insufficient QA by a pair of manufacturer's in regards to their best practices documentation.  A description of their experience can be found here at the Diary of a ZEN Master.

This incident is unfortunate and could have been prevented had one of two conditions occured. 

1. The manufacturer of the software should have fixed their bug
2. The hardware manufacturer should have taken the time and effort to have their document reviewed by the software manufacturer for possible implications of the settings.

The fall out that we now have to deal with is that of double checking the documented best practices at an even deeper level to ensure that we understand the implication of tuning certain variables.  For now, this goes down in history and we have alerted all our other customers to this possible issue.