Printed one at 90% and another at 80% size because I have a tiny head.  80% fits me!  Overall, Im really happy with the print, it prints quickly and I can churn out enough to hand out to people.  I would like the nose to extend further because my nose is not large but it is pushing the filter cloth a bit and I worry that I might push the filter off if I don/doff quickly.  On a related note, do you have a template for cutting the filter?