Please select our standard or racing style.  The mast hole in the standard plate is centered fore and aft. The mast hole in the racing plate is placed as far aft as possible. For initial installation the plate needs to be put on the mast before the mast is stepped. Once installed the mast plate stays in place on the deck/partners so stepping and re-stepping the mast becomes a much easier process and the mast is locked in at the partners for consistent tuning.