Not Sceleratus, but I'm pretty confident he (and Tom, the designer provider of this information) wouldn't mind. I've built the same amp, and Sceleratus and I but implemented the same basic 'LPAD' circuit that Tom provided. I've attached it below. This allows us to switch between speaker taps and headphone out. I've been running mine with Mills resistors, but just yesterday rolled in Path Audio resistors. The mills sounded great, but these PA resistors are ridiculous. Clean, smooth, fast, better macro / micro detail (less phase shift / smear) and better separation. Not cheap, but they're not coming out.