Hi Chuck
Well yes you are off course correct when it comes to reciting the textbook.
However real life is usually a bit different, otherwise no-body would ever make a mistake.
Furthermore on the approach you would be flying with a low powersetting so the signs are likely to be less obvious.
If appropriate I will be more than happy to bow to your greater knowledge and experience, but you may find reading the following report as sobering as I and more experienced twin-drivers did.
http://www.aaib.dft.gov.uk/formal/gilgw/gilgw.htm
FD