First, I'll address the comparison.
Matt: I've had a Swollen Pickle several times. Only this last time did I find it usable. I finally opened it and adjusted the internal trim pots. That made all the difference and really had me warming to it for a while. But then I got out my old Sonny & Sanford Blue Beard and fell in love with the simple muff circuit again. All the options on the Pickle make it rad but I've given in to simplicity. The TFR has way more focused low end. The Pickle probably gets some brassier and square wave type mids, but the TFR has a really churning fuzz. I like that. One drawback I'm noticing is that the TFR has to be dimed to get where I'm wanting. It gets there, but I'm still curious about the Civil War. I hope that helps. If you want more details, just say so.
I've threatened several times to build a Tonebender with the Civil War specs to get that lower drive/singing tone. But right now I'm wanting subs and fuzz.
BFunk: The TFR really cleaned up the low end for me. I'm down at G# and can notice a clear difference. I split my signal so my clean lows are always present and the TFR meshed well with that at full distortion especially when I bypassed the blender pedal and just played it straight. The Civil War is quite tempting. What kind of bass/pickups are you playing into what kind of amp/cabs? What kind of music at what volumes?