Good discussion going.
For the hairpulling fans, including myself, it's the #1 thing. Take for instance DWW and their monthly releases, they hold back the hairpulling ones, just releasing a few each time and mention it for sure in the description because it is a seller.
Nikki , Jess, Mira, Alexa Brooke, etc. one of a kind great finds.
Most models/porn stars, they just won't be that into it and will flake and be meh.
Dipping into wives/girlfriends is really the best or bartenders, "actresses" , Mira types that do cosplay, might just do it if they aren't doing a nude thing. Some girl actually like the fighting , but fighting and nudity, that's a hard one. I think East Coast Cats is a good example, a pretty unique range of participants.