Well, just for information, I have just done my first week with a Helmet
I really did not know what to expect, but can honestly say that I did not notice I was wearing it within a period of about 5 minutes. It really came into it's own later in the week when it turned cold and the wind got up, as I cannot ever remember having such a warm head when skiing in bad wind
It also got me a new nickname. I had this "black theme" going this year, with a new Black Jacket and Black Helmet, so one of my mates asks if I have an inkling to be Darth Vader, to which my Brother promptly replied "Ha, don't you mean Daft Vader?" which ended up sticking
On a serious note though, my Sister was hit from behind by a Boarder on the first afternoon. She also wears a Helmet, and thankfully this did protect her as she hit the piste pretty hard with the back of her head. All she ended up suffering was a sore shoulder for the rest of the week.
All due to someone going WAY too fast on a very busy Blue run back to the resort. We learnt from that, and found it was far easier, even for the relative beginners in our group, to use the Black run back down, as it was almost always empty, and once past the initial steep icy part was a pretty good run down.