I understand your position about the chin strap. The original idea was safety. Worse things were said about the seatbelt. Wearing a seatbelt was once considered hoaky. The SUL, New View, and
FX Shock have not matched promised expectations for providing great protection. All three are designed by product engineers. One was actually an innovative idea (SUL). But the other two were real hoakey.
Take a look at the future mask {similar baseball mask already used in Japan}.
http://www.hockeymonkey.com/itech-ho...ll-shield.html
Better pictures available through search engine.
The cantilever {upside down L} design alone offers more protection than a HSM. If the helmet is worn properly, it will absorb most of the blow and padding could still be inserted to protect the chin. All the advantages I mention above apply. Open face bars already exist. But wearing the helmet w/out the chin strap poses the same hazard we face today.