Skypilot
Assistant Pro
My favourite too. I mix it with 50/50 straight whiskey to just lessen the sweetness a bit.Personally love Drambue has herbs and spices with heather honey. Lovely neat with 2 ice cubes.
I thought I'd invented this myself but found it's a popular variation on straight Drambuie known as a "Rusty Nail"
I like plenty of crushed ice in mine.