Hi Jay, I assume you are referencing modern shops. If I am not mistaken there are pick pole divots exposed on older frames, from raising. I am not sure how one would use a picaroon to roll timber. I use my cant hooks for turning timber, digs will show. I also have dirt smug, tire tracks, foot prints, mud, blood and things I can't explain on some finished frames. And heaven forbid the timber should check. Just saying there are a lot of ways to embellish a finished frame, it is part of the art.