Upped the Scotch and used maple syrup as per Jose Cruz's comment (but only 5ml instead of 10). A bit sweet, but better than the normal version I made before,

Made a riff on this tonight using A’bunadh, Antica Formula, Honey Syrup, dash each Peychaud and Angostura (Fee’s), adding 1/3oz Laphroaig CS and served up. It’s sublime.

Great drinks - made with Johnnie Walker Double Black adds a nice smokey touch. i’ll try with the maple syrup next a good suggestion!

Used Johnnie Walker Black & Dolin Rouge. This did not taste as expected, but I like it. Much less "smoke" than anticipated. A 30 second stir was plenty dilution (maybe too much and/or freezing the mixing glass might help?). Nice balance of the scotch/smoke/vermouth/sweet/spice from all ingredients. Smooth, easy sipper. Curious to try sub'ing maple syrup for the sugar syrup, as recommended by Jose Cruz.

forget simple syrup, 10 ML maple syrup takes this drink up two notches.

Bien sucré/ amère

Beautiful drink. Subtly different, but in my opinion much better than a Rob Roy

Very good combination of flavours. Good for an aperitif as it is similar in taste to Drambuie, but not as sweet. Overall a great drink.