"Larry C" wrote:

BTW, I took an old Protec Full Coverage that was old enough that I was
reluctant to trust it anymore and beat it with a large crowbar to see
if I could get it to break or even seriously deform. As you know, I'm a
rather large and stout guy, but I couldn't break it nor did I see if
ever deform enough to the point I thought it would contribute to an
injury.

Many years ago I paddled with a guy who had a Protec helmet which had been
run over by a truck. It was still serviceable.

And on a separate note, I was on a fairly easy whitewater section on
Saturday, and a member of our group got a concussion when he flipped over
onto a rock. I don't care what material a helmet is made of if it doesn't
properly cover your forehead!

-Paul