Taste: quite edgy and awkward, combo of sweetness and smokiness, but it doesn't combine with the nose.
Finish: long enough, spices, wood, smoke and plums.
Overall: I'd say 10 yo is more refined, the taste and balance in 12 yo left some embarrassment.
Score = 21.5 20 21.5 21, 84/100!
The whole story - https://madmaxhwisky.blogspot.com/2017/04/whisky-felling-4-yoichi-hokkaido-spirit.html