Pheobe--
I'm like Tobias, in that I feel my throat is no longer irritated from the smoking, and the drying effect it had on it. I too used to get a mucousy throat, and my voice would get hoarse at times. It was really annoying at night, and when I would talk on the phone I often lost my voice! Now my voice is always clear, and I also have noticed I can sing stronger, and carry a note a lot longer than before!
Congratulations on your 4 month long quit, that's fantastic!

Deda