For years I've squirted fragrance against my scalp in a few places, rather than spraying my hair. I do this because my head is invariably the hottest part of me - not that I'm a 'hot head'! - and both holds and releases fragrance far more efficiently than the so-called pulse points. I may as well use fragrance as an air deodorant as apply it to my wrists, for instance. I've not found any dryness with my aging and foiled hair, but I do apply the fragrance to as much skin as possible rather than the hair. And maybe it works for me because I live in a temperate coastal region.
There are, however, two things I'd like to point out.
The first is a plus: if I feel like refreshing the scent during the day I just rub my fingers against my scalp, in the same way you might fluff up your hair.
The second - for me at least - is a bit of a minus: the scent holds so well it means I can't wear two different fragrances on consecutive days (except if I wash my hair).
I did try Chanel No 5 Hair Fragrance once, but it was gone almost as soon as it was applied. I've found 'my way' far better!
Give me the luxuries and I can dispense with the necessities (Oscar Wilde).