[Porsche-O-Phile]

No, I'm sure he's a stand-up guy and probably telling the truth about the history, but do you really want to bet your life on it?

I agree there's a financial interest in "the industry" saying to buy new all the time, but there have been actual studies done to show that even a very light crash or drop can compromise the absorbing ability of the helmet.

Read that article - lots of good info. there.