Hi All First post here. I have built many guitars as I am working on my own line of guitar. (Electric solidbody.) I love most everything about building guitars except for crowning and what I call crown balancing. (Crown balancing to me is after all frets are crowned and then I go back and use a fret rocker to balance the frets against each other.) Anyways, what’d I’d like to know is how long does it take you to crown all the frets? I must be doing something wrong because for me a newly leveled fretboard takes hours upon hours to crown them. I am using the double sided StewMac straight file. Looking forward to your replies.