I have come to the unfortunate conclusion that distortion pedals sound like complete ass through my rig.
None of them sounds as good as the lead channel with a simple boost from my OD-9, or even as good at the lead channel without the screamer mid hump.
They are only useful as feedback generators! I tried playing the Black Secret and Metal Muff through my clean channel, and they both sounded awful. On the lead channel they can be useful if you are playing a real noisy divebomb or hammer-on lead, that's it.
I have an MXR Distortion+ (script reissue) coming in the mail, I'm predicting that will be as bad. I'm just going to keep them - together with the MXR 6-band EQ, which is just too noisy - for my Peavey Bandit if I can ever get that fixed for a reasonable price, and purely then only for crust punk stuff, where a cr@ppy distortion pedal through a solid state amp is the sound.