I've been meaning to do it anyway, but I've added Diane's blog to my links list since she saw fit to holla in the comments a few posts back.
The secret with the Lapsang Souchong seems to be pretty simple: actually take the tea bag out after a few minutes. With the Irish Breakfast I just let them tea bags sit there; I like it strong. But the wood-smoke Lapsang is lethal at high concentration. Phew.