Despite Knob Creek's marketing for this bourbon, I received batch #4. I still can't find any info online regarding batches 4 and 5, other than people like me who are reporting snagging a bottle. This is a nice bourbon with great color and a luscious aroma wherein the brighter youthful notes have become mellowed, blended, and velvety. If you're seeking an older bourbon, you're probably hoping for strong oak notes on the palate, and while this one's got them, they are on the subtler side and are accompanied by notable astringency (I wonder if this had anything to do with their decision to dump the barrels at this point) that battles with the vanilla sweetness and burn, which is there even with a healthy dose of water and persists through the medium-length finish. Definitely a nice whiskey and tastes like its age, but my rating scale factors in value, and for me, this isn't as good as the equivalently priced (if/when you can get it) Pappy 15 year. If price isn't an object, go for it, but don't expect a miracle! It was easier for me to appreciate the subtlety of the aged characteristics drinking this after a much younger whiskey.