my board isnt designed "per song". Its literally designed "per guitar and pickups in said guitar". IE, "this pedal is used for this pickup", usually. Or maybe "this pedal PLUS this pedal for this pickup setting in the strat", etc etc. This way I set up three or four different tones, hopefully with relatively balanced volumes... and then I just choose which sound-tone I want to use for whatever song. My band is too big for any realistic use of time based FX for my guitar, so I dont have that as a consideration. the only pedal that is used on a per song basis is the wah. That makes sense, even if the rest of my post does not.