They’re both very good, but I’d have to lean towards the Eureka. Its nose is incredible! The roasted chocolate malt works so well with the PX aging. The peat is not quite full blast in your face like the 10CS is. The Eureka is more balanced and complex. I typically lean towards all ex-bourbon aged, but there’s just something special in how they mixed up the casks used for it. It’s even better after a couple of drops of water. Really brings out the dark fruits and milk chocolate notes!
The 10CS is also not a total replication of the standard 46% 10yr. They used a very small % of “experimental” casks with the distillate barreled at an even higher starting ABV and it shows in the final product. There’s something I can’t quite put my finger on with this one. After a few drops of water, the bright citrus notes (lemon in particular) really come out and the soot/ash settles in a bit. Overall, it’s a very solid pour and one that might overtake Laphroaig 10CS after I get more familiar with it.
You can’t go wrong with either…especially at the $85 msrp both have. They’re different enough to warrant having both!