I though about switching to a 3-way when I put Country Boys into my Baja but decided against it. I'm into traditional sounds so don't use the 'other' settings much, though admit that the 'in series' and 'parallel/out-of-phase' are both useful sounds. Ideally I'd have a 3-ways switch with those 2 settings (I could do without the series/out-of-phase sound) as push/pull on the pots.