i used those files - the larger radius for the larger fret-spacings, the smaller radius for the smaller ones - just dont take away more then 3mm - thats enough by far - try to make it as evenly rounded as possible without bumps. then go over it with sandpaper to smoothen it out. afterwards some fretboardpolish to get rid of the dirt and voila!
[FONT=Times New Roman]Holiness is in right action and courage on behalf of those who cannot defend themselves. What you decide to do every day makes you a good person... or not.[/FONT][br][br]