In an effort to duplicate some of these worn, played-for-years characterictics, Tyler Guitars 'rolls' the fingerboard edges on every guitar they make. In fact, this feature has become something of a company hallmark -- and they have certainly taken it to the nth degree. (see pic above of my Tyler Studio Elite Jimburst)
When viewed at a certain angle, the fingerboard edges, meticulously shaped by hand, appear to be almost scalloped, with a slight concave between each fret.
What this translates to is a very smooth playing neck, since all sharp angles have been painstakingly sanded out of the equation.