@Digityman: excellent comments. I agree it is the only way to go, but I don't know what it looks like. I think boards DO give, somewhat, but it varies by arenas. There should at least be a standard, which there isn't. Nor is there for glass, yet. That would be a start. But speaking of "softer," I'm reminded of a comment that Phil Esposito said a few years ago, viz. that back in his day, with rare exceptions (e.g Bobby Clarke who was a fitness fiend compared to most players) everybody was fat. When they got hit, the fat kind of absorbed the impact. Now think about the last time Hartnell was injured? He's very durable (80 or more GP 6 of his last 8 years). I think there is some truth to what Espo was saying. Some. EDIT: has Hartnell ever had a concussion? Prolly, but not a bad one I bet. Since his brain, which is a muscle, is also fat, he's got protection.