The final chapter of a decade-long experiment. Pinhook's Vertical Series tracked the same bourbon from youth to full maturity, releasing a new age statement each year. This 10-year conclusion—barrels laid down in 2015 at Castle & Key Distillery—represents just 75 barrels blended by Sean Josephs. The mash bill (75% corn, 20.5% rye, 4.5% malted barley) at 57.95% ABV (115.9 proof) delivers the complexity and concentration that only a decade of patience can produce.