This may seem like a dumb question, but is there any real difference between a helmet geared toward skiers and one geared more toward snowboarders? I don't mean as far as safety is concerned-- I'm thinking more along the lines of are there any features that snowboarders want in a helmet that skiers don't want/need overall? I just got thinking about this because I read someone mention somewhere that they thought the Giro G10 was geared more toward snowboarders than skiers . . . Is it just a style difference? I'm not sure I can really tell the differences . . .anyone care to enlighten me? For example, of these helmets (Giro 9, Giro G10, Smith Platform and Smith Premise) which is more of a skiers helmet-- if any. Thanks