Frets need cleaning

The finger board looks fine so I started to tape up the finger board areas to protect it from the filing and steel wood cleaning.

The first 5 frets had a lot of wear, probably the last owner like to stretch the high strings.

All cleaned up.  Now I understand why the guitar techs say to use the steel wool very lightly.  It's very easy to flatten the fret instead of maintaining the crown.  It the string buzzes when fretting a flatten fret, then it may have to be replaced if there not enough meat left on the fret for filing.