Let's see now,...the line is pressed on or burnished if you will.
The hollowing of the wood does a couple of things all of which are important to my method 1st...the leather that comes around the back of the pad creates a radius on the back edge..if you mount this on a flat surface no matter how tight you screw it on it will leave a slight gap and the fit will not look clean. 2nd...the centre of the pad will rest flat against the wood, the rest of the leather is not under pressure except on the perimeter where it gets tightly pinched,creating an almost seamless transition between the wood and leather. 3rd...the epoxy will almost always run towards the inside (no mess), seal the edges of the leather and fill the gap,...that makes the pad non shifting and removable. The pig skin is about .030"
CJ