I am not trying to say they will have the same impact, but the principles are the same. The absorption of kinetic energy by some form of barrier. In the end it will come down to the quality of the headgear.
In my view, with the recent concerns over the impact of concussions this subject should be revisited and a some research into better quality headgear undertaken. We shouldn't be seeing blokes like Liam Fulton having to retire at such a young age.
Brain injuries and concussions certainly needs a lot more research I agree with that.