I was sold on MIPS when I first read about it because two weeks earlier I had crashed hard and slammed my head. My chinstrap wasn't tight and the helmet slid down my face, knocking off my glasses, the chinstrap nearly taking my ear off. I had cuts around my eye from my glasses. But ... no concussion. None at all. And this on a guy who has slammed his head enough that his brain is loose. I get concussions very easily. (A major head injury 40 years ago - coma and more than a few lesser head contacts since.)

So two weeks later I read that slippage apparently minimizes head injury. After what I just experienced, that made perfect sense to me. I now own a POC Trabec with MIPS. From REI. I didn't get the sale price. Just bought the first MIPS helmet I actually got my hands on that fit and was white or yellow. (I see accidents that don't happen because I am seen as even more important than protection when they happen.)

Plus of the POC - it's a really good helmet, very comfortable, very well thought out.

Ben