Tried on a teammate's Gray Nics lid, seemed ok but bloody heavy, grill felt very unbalanced although I expect this might not be so bad when you've got the helmet fitted properly.
The GM I've tried on once in a shop, seemed pretty good to me. Weight wasn't super light but wasn't bad either, only thing I didn't like was the field of view compared to the old standard lids. Definitely better than the GN, for me anyway.
Shrey Armour? Haven't tried one properly as the shop only had kids size, but crammed my head half in to get an idea of the view and it seemed alright. Not too bad on weight either.