As so often the case in helicopter design, the 'weight engineers' have it over the others. I remember a video conference held by Shell Aircraft at LHR with the engineering guys at Sikorsky following a number of issues caused by components with a lack of tolerance to any kind of minor abuse (dent, scratch knock). The chairman invited the Sikorsky Chief Engineer to take a flight bag containing 30kg of metal and "put it back in the airframe". When you trim the margins to 1 x the critical load factor I guess you are the very definition of someone pushing their luck - actually YOUR luck. BTW there was only a chuckle from the three engineers in the US.
G