So I've been seeing that people say a HPF would help tighten and fatten up your tone by removing the inaudible low end - great, sound like something I could use. I understand the notion of maybe saving your speakers from trying to produce very low frequencies, or making a smaller cabinet sound louder, but I'm running an Ampeg 810 and rarely ever pushing the thing to it's limits. But then counter-intuitively I unanimously see people recommending it be placed after an Octave pedal? Wouldn't that undo the work of the octave pedal? Wouldn't you want to remove the nonsensical sub frequencies from your bass and then reintroduce the more "pure" ones produced from an Octave pedal. Is there something I'm not understanding?