You guys are crazy and there is some serious speaking from the hip going on around here. Wow. Being a retail buyer with over 20 years in the business you guys have so many half truths going on here it is mind blowing.
Jim Wilson was one of the first composite helmet builders on the planet. He sold his molds to companies like PS Composites, Grateful Heads, Murky Waters, and FNA. Jim Snyder designed helmets for Grateful Heads and others. So did other helmet designers. PS Composites, Murky Waters, Grateful Heads and FNA are builders not always the designers. If you crack one of these companies helmets they will NOT come apart. They can't if built properly using Kevlar correctly. Composites are just that layers of a cake. No one should built a pure carbon helmet- it would be light but far from strong. The proper mix would be e-Glass, Resin, Kevlar, resin, e-glass, resin, Kevlar, resin, carbon all into one vacuum bag. Then you would add a foam to the inside. The thicker the better.
But, as always it doesn't matter how over built the helmet is- if it doesn't fit your head properly. It will fail to protect you.
I love to dance, but who needs the music- It throws me off.