LONG TIME LISTENER FIRST TIME CALLER ON THIS TOPIC . . . . . I've got a fat head and for the road I just bought a Shark carbon helmet because I have a crap disc in my neck that doesn't help holding all that weight up HOWEVER when it comes to fit I didn't have a huge number of options ( cost is no object coz I buy at wholesale)as most helmets sat on my chin............despite the plain logic of the aforementioned article about the shortfalls of the Snell tests there is a gaping anomaly regarding fit.......test dummies and test heads are one thing but it should have a higher reliance on actual crash data because "provided data" from a manufacturer is worthless , and frankly Snell testing is on the nose .Their data is spot on if your head is made from fiberglass in the exact dimensions that they designed the helmet for.Most of the arguing about this topic in the past has missed the basic point of specifics regarding cost and the inability of volume manufacturing to accommodate the infinite variety of head shapes.It will never be perfect , and neither will Snell, but a secret handshake always beats an outsider who is right.