I find it slightly interesting that within a thread about using POH data and info there are folks banging on about the sideslip/flap thing. (I used this example to make my point)
SOME types of Cessna had a little note in the FLIGHT MANUAL(!) cautioning against it. It was never precluded nor did it apply to every high-winged Cessna. Despite this, rumour abounds - this exactly highlights the original point. Most people do not read the FM thoroughly enough.
STOP RUMOUR - Use the facts!!!