Nose: vanilla & coconut. I think all Grain from the Bourbon barrel have these notes in the nose. Very fresh, slightly mineral and of course very sweet.
Mouth: Strong, if almost 60%. And now it gets interesting. The barrel has been quite harsh. Distinct bitterness, bitter oak
Finish: very dry, astringent. Clear oak, a little sweetness still sneaks through the mouth, but the dry finish predominates.
Conclusion: in the nose typical sweet Grain then takes over the barrel, in my opinion, a little too strong. That's what makes the Single Grain a character, but it's no palate flatterer like most of the others.