Or functions (or lack thereof). A pedal for sale on another forum had the knobs EMISSION and SPECTRUM. What the heck is that? Also, I once bought a pedal from a boutique builder that always got raves. When the pedal arrived, it didn't have an LED. It had a stomp switch, but how am I supposed to know if it's on or not when I'm not playing yet?? Apparently this was normal for all of his builds. So... what drives you bananas?