I can only say that I like mohair better than flax, I don’t really dig the hair on current Creeps, you can still ask Justin to put mohair though, just offer some more money in case he declines that as an option
I asked him, he doesn’t do it anymore. He told he doesn’t have any mohair, so the only available option he offers is flax. I ordered the blonde flax sprayed painted. He used to do it with his much older creeps when it was going for $350.
Flax is amazing stuff and really styles crazy. I would not want it on an h1 style mask tho. Works great for more of a custom stylized mask. I had a maniac made w flax hair and I had a blonde flax hair psycho. They were awesome just bc they were unique and different but def not what u would want for accuracy.