One of us wanted the Frangelico dialed up, and the other dialed down. On the average we did settle for 15 ml. (25 ml in one and 5 ml in the other) I get the enhancing of the nutty Oloroso flavour with the Frangelico, just don't let it overpower the Sherry.
We have taken the frangelico down a little bit, and then used a dry oloroso instead of the fino. It keeps the nuttiness, but makes it rounder and slightly less sharp. We used Knightor’s dry vermouth. Next time we’ll try with a palo cortado. I think this is a bit underrated.
Agreed, less liqueur and dry oloroso sherry are delicious. I've amended the recipe accordingly. I also tried with palo cortado but nutty notes were more pronounced and overall cocktail better with oloroso. Many thanks, Nick.