Man, I suggest that you try a Fuzz Factory out in person before you buy it, if you haven't yet. They are really cool but also a pain in the ass to learn and operate (much harder than the demo video makes it look). The majority of the settings you can dial in produce obnoxious squeals or nothing at all.
That stereo low pass filter, do the instructions say anything about being able to use it mono? My EHX Stereo Memory Man w/ Hazarai is, well you saw the title, but if you use either channel alone it works perfectly fine.
carrotosaurus, fight you so hard. Those shits are expensive and I want some!