your trying to be the expert that you aren't
theficklefinger, you're new around here so your ignorance is excused. You will find
NO WHERE where I have pretended to be an expert, quite the reverse. For your edification Shellie has a well earned reputation here on Pprune for being the self appointed expert. Unfortunately he has always been found wanting by, not only real safety professionals, but the run of the mill aviators like me. That is quite apart from his troll reputation, which has been recognised, and commented on, by the Mods.
Get in out of the cold and revive yourself with a Schnapps before Felonious DNA cripples your logic.