Whats this "fully fit " thing you purport all the time?
I'm 6 foot 4 myself and 56 years old, if a 9 stone guy came in my house shooting me right now I'd be as much use as a chocolate fireguard.
Sheila was not a 9 stone guy.
She was bare footed, in a nightie, holding a rifle she did not know how to use, operating at 20%.