I just finished ip a bowl of three year old Vanilla Cream Flake, great stuff. And, several of those I already stock back. And, several of those disgusts me.
I don't find that age really hurts these, maybe at 20 years it would diminish the topping, but like latakia a few years really sets the topping further into the tobacco, balancing them. But of course, not all aromatics are created eaqual. For aging, you might look for aromatic Virginias and not thay swill weed most goopy aromatics are made with.
Harris, you might also try Solani Mango Flakes. If you like the piney, sweet gin-like flavor of mango. It's the aromatic that I stock the most of. Really good flavors.