The boys are reviewing a very rare bourbon on this edition of Proof Postive. King of Kentucky's fifth annual edition continues the trend of an ever-increasing bottle count compared to past years. The 43 barrels resulted in 3,500 bottles being released, which is the highest bottle count to date for the brand. In addition to the 15 year bottling, an ultra limited 18 year bottling will also be available, with only 250 bottles being released. The press release states that the barrels chosen for that year's release were from two lots of barrels from 2004 and 2006.  King of Kentucky has impressed in the past with the 2018, 2019, and 2020 releases, and making a lot of Whiskey of the Year lists across the board. See what the boys have to say about this one in the latest edition of Proof Positive.