That's definitely what I needed to hear. I think my fear was more about the little pattern that it might make IN the glue -- glue isn't always 100% transparent when other substance are in it .. but I imagine the glues used for hairpieces is built to dry completely invisible and shine free.

As I've said in my past posts, I'm not obessing about this now because I will obsess about it later, I'm obsessing now because it is a 3 month project to shave one's head and then regrow it, so if I'm going to try it again, I want to really be sure.

I wish I'd tried SFS back when I'd already shaved my stupid head. Oh well. Live and learn.