I happened upon a bottle of Four Roses Single Barrel Barrel Strength and at first could not figure out what was the difference besides price. Turns out they occasionally take any of the 10 variations (see infographic below) and have a private tasting of Bourbons from 9-11 years old and private label their selected barrel to create 150-200 bottles for the customer. So if you find one for a liquor store in one area, another may be completely different. I sure hope the one I picked up is stellar, it will have to hang out in the queue for awhile, but eventually will find it’s way to a glass.