Wow. Your experience is totally different frm mine. The first [crappy] facescan was done with mostly indoor lighting and had 20,000 ref points. Yes 20,000! And it still looked like
that.
The new facescan I did this morning. Took only 1 try and only had 10,000 ref points. It was sunny this morning so I had a window open but I had indoor lighting as well.
I wish I could be of more help.