There is more chance of an old glider dying of a heart attack than a dual flame out with no relight possible....
Your thread is flawed
Well, that didn't take long, did it? And so typical of those well known breed of cynics on Pprune who resort to sneering sarcasm rather than shut up if you have nothing to offer but an ill-mannered reposte. Readers would prefer a reasoned line of professional discussion - not sarcasm which is the lowest from of wit.