Well, I'm not going to imply that exceeding CG limits will definitely cause you to crash and die, BUT if you don't want to risk killing yourself DON'T DO IT.
> We are going to try this in our next flight.
Don't. You will likely invalidate your insurance and risk damaging the plane and yourselves.
> I don't want to die!!!!!!
And if you do, everyone will say "Well, they took off outside the manufacturer's stated limitations. That was a stupid thing to do and was the cause of the accident. What a waste."
Of course, if your instructor is an experienced test pilot that would shed a slightly different light on it...up to you really...