Well I finally went ahead and bought the Katana 50. I needed a wah and tuner anyway, so I figured a K50 and Multi-fx would be the way to go I wasn't too keen on the 100 model + the £80 switch with no wah. It just wouldn't work for me. But £160 for a compact, loud pedal platform ? ... with every FX you can image in the box ? (great for practice). ... Roland/BOSS reliability ? ... Even some preset / channel switching functionality ? I must admit it, I had my doubts, but tested in earnest, Yes the headroom is there, the tone is there. It's the easiest and best guitar-related purchase I've ever made!