Nice, I remember that thread.
And soap? No, not supposed to taste like that.
I recently kicked a keg of a batch I brewed around the same time as you (September-ish 2012) that I haven't been able to get at very much since I worked out of town most of this year. But it was still good, spices very much faded, but definitely no soap.
Good luck on this go-around! Doing the tincture is a good idea.