Live by the POH; die by the POH.
That must be one of the most stupidest statements on here in a long time.
If there was anything in the POH that is a risk to life the authorities would never allow it to be in there.
If there was such a procedure which could risk life. The POH would have been changed or a design MOD done to remove the risk.
Do you think they make these documents up for fun?