I'm a fan of the Dickel BiB, and I enjoy the Barrel Select. All in all I find their whisky to be approachable, flavorful and a good value. This is my first taste of the 15 year single barrel. My bottle is identified as bottle 210, but I don't see any obvious reference to the barrel itself, which is fine. I don't put much value in looking for a specific barrel and, to be honest, I find listings here of specific barrels to be counterproductive to creating a community review. That said... This bottle's been open for a month or so and it's down about 1/3. This review is based on a neat pour in a glencairn. The color of this bourbon is polished walnut and a swirl shows good sheeting with many small legs running to the bowl. On the nose the contribution of wood is obvious. Wet oak, barrel char, baker's chocolate, caramelized sugar and slight vanilla are all present. The nose is not indicative of a sweet dram, nor a spicy one. Instead it speaks of years in a barrel. On the palate this is a lovely and delicate measure. Its dry, slightly spicy and moderately complex. The wood - again - is in the forefront. To me that is what this expression brings to the party. This is a lesson in aging bourbon. I would almost say this is over aged. It stands right at the line of being over oaked without going over. As a sipper this is absolutely best enjoyed neat. Ice or water do nothing to improve the profile, in my opinion. There's a bit of ginger spice, light vanilla and a clean mid-palate that leads to a quick fade and a lasting trail that echoes bitter wood, slightly sour mash, and a very light pepper spice. I think this whisky could be an absolute monster when used as a flavoring agent. As an experiment I enjoyed a 50/50 pour of the 11 year Bottled in Bond and this 15 year single barrel. Wow! As a blending element this needs a lot more exploration. Both whiskies in my experiment were bettered by the blend. This bottle brings the age to other distillates that might bring the fruit or frosting. It's a bit difficult for me to give this a rating. On its own as a plain sipper its better than average but not exceptional. I rate on a 5 point scale where a 1 is unpalatable and a 5 is a perfect expression. Most offerings follow a bell curve and end up between 2 and 3. Much of what I write about is between a 3 and a 4.5 because I try to avoid buying the stinkers in the first place. This isn't a 4 on its own, but it's mighty close. What this whisky really is is a master class on when to empty a barrel. It's wonderfully balanced, but lacking that last bit of sparkle because of the low proof. I'd love to taste this at cask strength, but it may be too oaky in that condition. It's definitely the oldest tasting Tennessee whisky I want to drink. 3.75 and recommended as a great research investment before you wander off trying to buy a 20+ year old unicorn bottle for big bucks.