Ugh! The Poser API for dynamic hair looks even weirder than what I've been dealing with before. Correct me someone if I'm wrong: 

• If the IsHairProp() method of an actor returns 1, that tells me that the "polygons" in that actor's geometry are really meant to be poly-lines, and each line describes an individual hair.

• So far so good, but now I want to know how thick I need to make those hairs. For that I need to find the parent actor of my hair prop, looks through its hair groups and identify the one with the same name as the prop I'm currently working with. That hair group has methods RootWidth() and TipWidth() which should give me the information I need.

• Last step: what darn unit are those hair widths in? Does anyone happen to know or feel inclined to find out? A hair of width 1 is pretty darn thin, so it's none of Poser's usual units.

-- I'm not mad at you, just Westphalian.