We are in the process of reviewing for arrse some helmet inserts for the combat helmet. These are foam pads which are inserted inside the helmet to give extra padding/comfort. A few of us have tried the pads and are having issues with fit once added. So my questions are; Does the hardened insert which all the issue leather pads straps fix to add to the ballistic properties of the helmet? (mk6a) Will removal of said insert make any difference? Cheers.