I have a Yonex Ezone 380 that was supposedly 11.5, though it looks like more. I bought it off EBay about 3 years ago. The prior owner had stripped it -- I guess the paint was all chipped and scuffed, and polyurethaned the carbon side of the crown. It doesn't look bad with the raw metal and it's a nice compact driver. If interested, I'll get some pics up