I brought an LS2 FF324 Metro Firefly with me on the bird.
Bought it because of the excellent airflow. Large channels in the top vent hot air out. Works great - first helmet here where my head doesn't get wet with sweat.
Built in sun visor works great.
The visor - took it off right away as it is just too flimsy. (Black in pic)
The provided clear shield is not pinlock ready, but the replacements I brought with me are - strange.
I wear ear plugs - but even without the noise is acceptable up to about 120
Would replace it with the same if required.