Matt - the RLC has it's share of unfit soldiers, just like every other arm & corps. However I would concern yourself more with the other children in your hobby club rather than baiting the Regular Army.
After a little bit of research, it would appear that most Port Operators would prefer to spend more time at the cakestall than in their sportskit. Movers don't like moving their own large carcasses very much. However, suppliers are never happier than when supplying fodder to their own expanding waistlines.
Whilst I have total respect and gratitude for their work and dedication to ensuring that the mail always get through regardless of the challenges they face, I have to raise the trivial fact that the Posties aren't short of a pie eater or two! - Movers however, must own the 'kin' shop!
I know shiit loads of very fit, slim and athletic tradesmen and women who are fooking useless at their jobs. (Plus most skinny fookers are total shite at drinking - who gives a shiite what people look like???)
(Yes, you've guessed it - I am a fat Knut!) (Hopefully joining as an AT!)