Knuckle or spiked curve - fingernail damage


#1

I don’t know how many people have a knuckle curve in their arsenal, but I remember Steve Ellis did, so I’m kind of directing this to him.
What do you to strengthen your index finger fingernail to keep it from wearing down to nothing? Mine is almost gone already, and I just started throwing again. Have you ever heard of anyone using a fake nail? Thanks.