Mom cut it as a kid.
Wife learned to cut it for me while I served in the Corps.
After she traded me in for a different model, I learned to cut my own.
Mow it all down with the 1/4" and then taper it up free hand. Although, I almost always have my wife check to make sure I did not miss anything or mess it up in the back. Yeah, there have been a few extreme tapers to fix gouges.