I use Dr. Slick's Razor which I like a lot and only use them on feathers and thread. I use some different scissors for hair since you do bucktail jigs. For that I use some smallest Henckle's Scissors that I originally got in a set like below link...
Buy J.A. Henckels International 5-Piece Scissor Set from Bed Bath & Beyond

Then I found them separate when I needed or wanted a new pair. I looked around a little, but didn't find this one separate yet anyway. These are great on hair.

Also have some Anvil and had some of the 70-A that Stump mentioned above and they also should be great with hair. I also had some of the Dr' Slick's Micro Tips and liked them as well, but not for hair.