Thanks, itzdoja! I already have some pre-mixed 555 flavoring--what I am trying to determine is the individual components to make it myself.
FWIW, I just mixed up all the nut flavorings I have (Uh...peanut butter, hazelnut, pecan, vanilla butternut and amaretto) with some flue-cured flavoring and a little bit of Seedman's to take the "green" off the tobacco taste. It needs to sit a while for the flavors to meld, but right off it tastes pretty good. Not 555, but a lot closer. Needs a lot more of the peanut butter, I think.