Hi Pappa!
It was never about the tobacco with HHV IMO. It was always about those sweet toppings.
From memory ; Lane Dark Cherry, Sutliff Molto Dolce (super sweet), Creamy Butterscotch and Christmas Spice (RY4), Gawaith & Hoggarth Kendall Toffee, Cornell & Deihl Autumn Evening and Scotty's Honey and Chocolate are all good top note tobaccos for extraction.