Having flown 732s for a number of outfits, ( inc. RYR ), some recommended opening the DV as a quick way of depressurizing, others ( inc. RYR ) did not. However, it was always at the back of my mind that if I had had to land or RTO with an engine fire warning, it would be worth opening my DV window once the aircraft had come to a halt and the immediate actions had been done (or telling the F/O to open his ) as a quick way of seeing whether the fire was out or not. Certainly quicker than waiting for the tower or the crash crews to tell you.
Nice job guys.