Emergov, you seem to know what your talking about (thank you).
Supplementary question...
The goal of a helmet manufacturer is to reduce the weight as much as possible, ideally below 1kg, while still retaining the protective capability for bird strike, accident, etc. So how much does the ARH/MRH helmet weigh, with the II tubes and the daylight cameras? Is there any thought that this may cause concern for some pilot demographics?
Second supplementary question...
Is there any polyamide insulation (Kapton) in either the ARH or MRH? If so, should Aus require this to be replaced to comply with ADF standards?