Anyone used one of the new Nolan N43 helmets?

I need an openface/flip helmet for Motorcycle Marshalling this year and this seems to be the best I can fit. Not a single flip helmet fits me properly.

I like the idea of the removeable chin guard for conversion from full face to open and the extra wide opening giving a full field of view seems good but this is where I am concerned....is it too wide open?

Wide opening just seems to say noisey to me and possibly unsafe. Opinions?