This is the same bridge that comes on the John’s Custom AJ-K model, and many of his one-off custom builds. He designed it specifically to use his JP Woodtone Saddles on a deluxe, medium mass, machined brass plate (as opposed to a vintage T-Style stamped steel plate). He and his wife Dana hand-make the saddles, and do all of the sanding and polishing on the bridge plates prior to the deluxe chrome plating. The combination of the brass plate with the Ebony and Stainless Steel saddles, give a beautiful middy tone to your builds, as only wood and brass can. It is designed for string-thru-body designs, with a 2 1/8” string spacing.