Flavor is a unique critter and I've never nailed down just why it can vary so much depending on a coils geometry. I made hundereds of variations of wire combinations and geometries in my MM quest before I settled on what I use and minor changes could tip the balance one way or the other. Different flavor components can be enhanced and others decreased based on geometry alone. One thing that I ran across was a paper on taste bud receptors that said taste buds respond differently to molecule size so it's possible that vapor particle size might play a role.