Adam
It does not matter about W&B with the 150. They are unique aircraft not subject to such detail.
Even the flying clubs train in them overweight
Do a W&B calc and you wont carry much in people or fuel
Pace
Reminds me of my skills test in a C152 many moons ago, I'm 6'3" and fairly well built and my examiner was considerably larger.....pre flight discussion went something like this:-
Eaxminer: Have you done a W&B for our flight?
Me: Yes
Examiner: And what does it say?
Me: We are XXKg over weight and out of the forward CG limit.
Examiner: Thats fine, as long as your aware of it, lets go!
Flew fine if a little lethargic in the climb but then when is a C152 not?