This is Mark’s new lining design. It’s a two piece, “reverse” kerfed lining designed for increased rim stiffness. The kerfed piece is glued on first (Yesterday’s photo). The second piece is a 0.040” thick strip that is glued over the kerfed portion to provide additional stiffness. Because the strip is about 3 times thicker than it is on one piece reversed kerf lining, this design is much stiffer and stronger.
The wood is 40 year old Alder that he salvaged from some discarded restaurant tables. Mark will use the same design made from Spanish Cedar for the back linings.