If one trawls guitar-related websites and forums and looks for articles/threads about correct stompbox order, one almost always sees a passage that reads something like this: "Put your compressor first, then your wah, then your distortion, and then run your modulation and time-based effects--phaser, chorus, flanger, and delay--through the effects loop." Something always bugged me about this. Bass Player, in its review of the SWR Bass 750, mentioned the effects loop and said "stick your Mu-Tron here," even though envelope filters really ought to be the first thing in the signal chain since they require the most dynamic variation of any effect. Wahs shouldn't be any different, really. So why are phasers--which are swept filters and not delay-based effects--incorrectly assigned to the effects loop to chew on a signal that's been EQed, compressed, and distorted? From talking with friends of mine who do lots of recording and engineering, it's evident that "filters before compressors" is a common rule. So why are guitarists and bassists told to dump their phaser into the effects loop, where it will have the least effect?