I remember Petzls feeling different than Kask, and chose the Kask just for the headband adjustment alone. What's it called..."up n' down" or something? Anyway, my $0.02 is that the Kask was the first helmet on which the headband could lower enough onto my dome so that I didn't have to crank it too tight. Maybe a head full of hair could benefit from that. My brother's head size rivals Kevin Mench's, and he digs the Kask, too.
Enjoy the Prime Meridian Lands, Swing!