I meant to reply to this but kinda forgot lol

I'm no expert, heck I'm still a noob at fursuit stuff, but I use a 1/8" (3 mm) comb attachment for the short parts around the face and what nots. I use the short comb attachment to thin down the fur and then go back over it without any attachments for the front of the face. I'm still learning so I have no idea how other people shave down heads but that's how I do mine (for now).

Thanks for your input! c: