Sharp testing has changed the business model for us dealers, It has caught a few of the top manufacturers with thier pants down, The top brands always used to score very well due to reinforcing the know test areas, This will no longer work as sharp testing asseses the chances of a brain injury from an impact, The lining and polystyrene now play a part in the test.
Small shell lids seem to come out Quite low too Obviously not as much padding inside.
Some good Gen here about it all
http://sharp.direct.gov.uk/about-sharp/test-protocols/ Personally I wear what I sell, Vemar, Or Nitro. Had an arai once and wrote it off in one spill, £400 is ok if your sponsored.
Glyn