Just saw this chart recently about probability of impact areas from studies of real-world accidents. It might make someone reconsider helmet type.
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This is interesting.
For the first time, in 35+ years of riding, I've researched for a helmet - a sign of wisdom - or old age? I have been lucky.
As shallow as research may have been with never a concern in the past, I did spend a lot of time through web sites for the top lids.
None had the impact probabilities you show in this photo. Thanks.
I bought the Nolan 104, and with my head, had to grind out larger cavities to relieve compression on my ears