I keep forgetting hair and render settings so i’m putting these up here.

If the hair shadow is too noisy, on the light increase Resolution, softness or Bias (2048, .1, .05)

Thanks to Master Zap and djx!

http://mentalraytips.blogspot.com/2007/10/hot-fuzz-hair-revisited.html

http://www.djx.com.au/blog/2008/06/29/tips-for-rendering-maya-fur-with-mentalray/

p_Hair

http://www.djx.com.au/blog/2009/04/14/p_hairtk-p_hairtk_shadow-p_shader_replacer/