Congrats, Banjoman!
You get the Lonely Post Award for the week!
As to what you're tasting, all I can say is this... the
tobacco flavor itself has a smoothness to it that's hard for me to pinpoint, but I can't rule out dairy... and TBH, it's what tobacco would taste like if it actually tasted good... but that may be where you're picking up smoothness...
Hope that helps...