I do this often. One particular stack/parfait I enjoy is filling the bowl first with Gawith Dark Plug, then put a pinch of a sweet VA like Marlin Flake, Mac Baren Club/Roll Cake on top. It starts off sweet with the VA and then gradually transitions to the rich savoury dark plug flavor at the bottom. Yum.
I also smoke the Gawith twists quite a bit. I usually do the same, load the twist 3/4 of the bowl and then add a pinch of similar ribbon aromatic on top to make it easier to light. For example, for the Black Cherry Twist I'll add a pinch of a cherry aromatic on top, with the whisky twist a pinch of Borkum riff Bourbon etc For an unflavored twist i just use an easy to light Virginia. The aromatic flavour merges perfectly with the twist flavour and it lights easy, no drying or messing about.