If that is in fact true, then it is probably outstanding as Mike (Scratchline) said. I found Vintage 21 to be phenomenal stuff, better than Saz18 and the later VW releases. The early VWs which were Medley are some of the best whiskey put in a bottle IMHO.
I believe the Saz18 was from the CoK batches talked about elsewhere, and while very good in it's own right, isn't quite as good as the Medley stock.
Many of us have issues with KBD, but there is no doubt they've put some barrels together and created some great tasting product over the years.



