Nulian
I use the Gallet LH250 with ANR and I am happy with the headroom as I fly B206L which has not very much room expecially on the LH side.
However I believe the LH050 gives you even more headroom as the visor is internal only versus the LH250 has dual internal and external visors.
If you only need one solar smoked screen then the 050 might be the ticket for you! You will not get lower profile helmet anywhere, I think.