My SDD3K was a noisy beast, and I had had it serviced by someone who is widely known as being especially good at working with that unit. My TF had slightly less noise when I compared them, but I thought the overall tone of the TF (+ Triad pedal, which is key for nailing the Korg SDD3K sound) was better than the Korg. But you must have a Korg that's in awfully good shape, so good for you. Maybe one day you'll sell it to me? 😉

Jeff