[davymac]

I have big scar on my thumb and it still works great for me. What do you find is most problematic about it for you?

[jcadam]

Mostly the fact that it just can't seem to read my fingerprints with any consistency. Now, I have problems with dry skin, so my fingertips are usually a rough, flaky (and therefore constantly changing) mess, so...

[aoner]

Try setting the same finger multiple times as different finger "profiles"

[jcadam]

Tried it. It works for a few days and then stops.

I've also had a frustrated government worker at a military ID office pull out the old-school ink and paper cards after failing to get a good read on their fingerprint scanner. I'm just a mutant :)