This thread is like a cliffhanger!

I have a model I exported, then I did some stuff to it (I made hair), then I reimported and the scale is all off. What I need to know now that I have the objaction scaler software is: what is the exact scale factor I need to use to get my hair the perfect size?

Here's the thread with the hair I'm talking about:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2786943