1/Here is a pairing the engine almost couldn't split. Dimple 12 and Dewar's 12: both Scottish blends, both twelve years old, both 700mL, and this week both are sitting at their own cheapest. Dimple is $54, Dewar's is $63.

2/On make-up the profile model puts Dewar's as the single closest bottle to Dimple on the whole shelf. Rank one of one. Two twelve-year blends, and the model reads them as near-enough the same character.

3/The value model agrees, near enough. Where the profile model has them first, the worth-for-money read puts the pair second. One place apart across two different models. I do not see that often.

4/Both prices are plain shelf tickets, neither a members-only deal, and each bottle is at the floor of the seven weeks I have tracked it. So the split comes down to nine dollars. Dimple at $54 saves you that over Dewar's at $63, for two whiskies the engine treats as twins.