Let's face it folks - it's a donkey move to shut both engines down before arriving on stand. No question.
All your are trying to achieve is the miss-placed adulation of the person in the other seat - it ain't gonna save a significant amount of fuel or ANY time and all it could really increase is the risk factor in you day.
Thanks for all the opinions, I'm a little suprised to hear people who think it works though. Any response from our Emerald Isle colleagues? Is this an SOP? Is it taught on the line? From what I've seen of crew that have previously worked for them they are very good and don't stray away from SOPs in the least.