Unlike you but perhaps similar to your setup, I'd been happy with stock SBT/Teddy Pardo TTouch PS for a few months before sending the SBT to Wayne for digital mod. After I got it back from Bolder, it took 2-3 weeks before it came to its own. Even though most if not all cables in my setup are of silver, the sound has now become more refined, still robust as before, warm but not overly so, quick taut bass, delicate highs. Above all, layering is now clearer, 3-D and almost holographic, less fatigue at higher volume. Those superlatives apply to good recordings. It's now much easier to pinpoint which recording is good, which is full of echos and other processings, etc.