Mine was barrel 502. It was aged just under 8 years barreled in late 2008). I really liked it at first. The first half of the bottle was very smooth. Then it sat half empty for a couple of weeks. I don't know what happened in those two weeks, but it wasn't good. My best comparison is to the McKenna 10 year Single Barrel BIB. The McKenna was MUCH better from start to finish and only a couple of bucks more.