Seacaptain, Dark Star makes me salivate just thinking about it, but yeh, I don't think it is even possible to pop a tin and smoke it fresh.
The one that I have found to be totally repulsive, even after trying various pipes and waiting are GH&co Dark Flake scented. There are many that I would never buy again or even try again, and one brand I don't like, but that Dark Flake, blech. I do keep the unscented version in the cellar. I love the strong flavor and nic hit, but that scented stuff would make me want to lick the dog's ass to get rid of the nasty flavor, if the carpet wasn't handy.