Thanks for the compliment Geoffrey. I have always tried to help people understand what safety really means, and to prepare for the unknown situations. Many people are not familiar with the difference in helmets, and the reasons.
A friend pointed out to me that in the above link to the article on helmets, that there are several other links to more good information on helmets that are worth reading. One thing that is mentioned is that currently there is NO Modular helmet that has obtained the Snell Certification. They mention that they do not meet the Chin Bar Test or the Shell Penetration test as well as the side impact test.
The Snell Certification is used world wide in many forms of racing making it much simpler for the sanctioning bodies. This was the case when I was involved as a Tech Official for SCCA Pro Racing in MX-5 Cup, Trans Am, and World Challenge. Also, when I was with F4 which is a world wide series, and Formula E cars which are only raced in New York for the USA, but many other countries in the world. That meant that drivers did not need to have a different certification for the helmets as well as suits in other countries.
Another item to think about when purchasing a helmet is the Peripheral vision. Try a helmet on and check to see if you can see to the sides easily. The first full face helmet that I had in the early 1970's had very little side vision. That is one of the reasons that I have heard many times for not wearing a full face helmet. That has changed through the years, especially if it is Snell Certified.
When I was racing snowmobiles in the early 1970's, at first, if I remember correctly, only a helmet was required in the Stock classes. Then when I went to the Open Modified Class with a snowmobile that I built from 3 different brands and 4 different years of parts, they required a full face helmet. At the time, they did not require the Snell Certification. As time went on, Snell was required for all helmets in all classes for safety. Which meant the open face helmet was no longer eligible for racing.
I hope this information helps everyone when they go to purchase a new helmet. They can then decide what helmet to purchase as well as how safe they want to be for when the critter or parked car jumps out in front of you. Just ask anyone that has had an accident, if they were expecting the crash? If they had, they might have worn safer gear, whether it be helmets or clothing.
Carl