STX's test results, which they commissioned, are here (note, its a large pdf, I wouldn't try to read it a smart phone):

http://www.stx.com/helmet/assets/pd...formational_Report_Web_Release_10714.pdf

In short, it isn't a technical issue, but one of a failing helmet (impacts too severe). That said, it could very well be that the Cascade and Warrior weren't fit properly or some other odd reason. I have an R and I bought for my son for Xmas. At least I can return his for a full refund if Cascade doesn't come through.