Ok, so I'm in the market for an open face 3/4 helmet. I've ridden with an HJC SY-Max (L) for the past ten years (yep, I got one when it they first came out) and I feel it's the best modular helmet on the market, even though I haven't tried the SY-Max II. So, today I tried an HJC CS-5N (L), not a bad fit but gosh I felt like a mushroom head! Then I tried the HJC CL-31 (M). The medium felt/fit just as tight as the Large CS-5N. Any comments? I would have thought the same size open-face helmet, from the same manufacturer would have felt the same. Has anyone else noticed this difference?