Delicious and beautifully balanced. Neither overly bitter not overly sweet but full of depth and interest. The Cynar and dry vermouth are great partners and draw out flavor from the Scotch (I used Auchentoshan 3 Wood). The elderflower liqueur is surprisingly subtle.
Very nice! I used Famous Grouse that I had on hand and it worked well (will have to try with Balvenie). I also tried a version with 1.5 oz of the Grouse, everything else remaining unchanged, and it actually seemed to bump up the presence of all the ingredients and increase the depth along with the extra boozy bonus. Someone should try this with the Balvenie 15 and see if it has the same effect.