I've been very happy with the sounds I can get out of my Tech 21 Sans Amp (the original, now called the Classic)--> EHX BMS-->Maxon AF-9, all run in a Barge
VB-Jr, with blend typically at about 60%.
The downside is that the whole loop takes up much of my PT-Jr board. Since November, I've been working with a Line6 M9 instead for most of my gigs that call for <octave-fuzz-filter>. For "Stevie's left hand" sounds, I prefer the octaver built into the BMS, but the M9 is usually winning its way into my gig bag because it's small, programmable, and much more flexible than the pedalboard.