Personally, I like shaved or at least buzzed down very, very short -- male, female, or in-between. I find lots of public hair messy, distracting, it gets in the way, and this is a turn off.

Professionally, I don't have any requirements. I really can't. It's not my place to tell a client how to groom themselves. That said, I do tell them that certain things don't work very well if you don't hack it down a bit.

Some subs know I like it well groomed and will do so because they know it is my preference. I enjoy that.