You can't cut that! I found a fab traditional stallion online somewhere in the USA, with amazing nasal hair which actually hung out of his nostrils in ringlets! Sadly I haven't been able to find the site again!
NOOOOO!!!! Don't cut a moustache off!!!!! They are gorgeous, whether on a mare or a gelding. Now the humungus ugly BEARD hanging 6 inches under my gypsy cob mare's pretty head is a whole different ball game! {{Whispers: especially since she won't let me trim it!}}