Several years ago we had a Drifter which was fitted with a BRS which was about to reach it's use by date when the owner/instructor asked if anyone of our experienced pilot group would like to try it out to see how it performed so I offered. I climbed to 1,000 feet above the airfield (nil wind conditions), did all my checks, switched off the engine, reached for that little red handle...........then changed my mind and did a dead stick landing.
I just couldn't pluck up the courage however, I would have in the case of a structural failure.
I could have re-started the engine but the exercise was useful anyway.
Alan.