I definately had a ton of problems looking through all the pedals to find a good distortion for bass. The metal muff seemed to take a lot of the bass out of the tone.
The mxr blowtorch was ok but it just wasnt what I was looking for (I got it for sale if you want it) it's definately much more of a fuzz then a distortion but it does keep your bottom end and the rest of your frequencies intact.

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Bass Rig: Spector Performer DLX, Spector Performer Classic, Peavey Millenium 5 string-->boss tu-2-->Boss bass limiter/enhancer-->Boss bass overdrive-->boss ph-3-->MXR phase 90-->Hartke 3500a into a peavey tour 15"and an avatar 1x12"

Guitar: Frankenstrat or bc rich warlock (both with emgs 85 or 81 in the bridge and locking tuners)-->Pod Xtlive-->Tubeworks poweramp--> avatar 2x12"

For sale/ trade:
1973 original Fender Mustang Bass-$750
BC Rich Warlock (planetwaves locking tuners, emg 85 in the bridge batery in neck pu postion held in by plastic cover, dunlop straplocks, and plastic hardshell coffin case with purple interior)-$250
Ampeg b2r (with flight approved roadcase)-$350
Epi Goth Thunderbird (dunlop straplocks and hard gigbag)-$300
Pod XTLive with bass pack-$300