A lot of people mention clean blending when discussing bass overdrive, distortion, fuzz, etc.
I play a P Bass with flats and like a warm, fat, thumpy B-15 tone, but every now and then, I'd like to get some grind going. So far, using a VT Bass with the gain up, a Catalinbread SFT, 90's Rat and SUF Civil War Muff clone just don't sound right with my setup - a GK 700RB-II with a Raezer's Edge 15". Too... farty? Muffled? Unsatisfying?
I really like the tone of my amp, and I like the VT Bass set pretty clean. Things just sound 'meh' when I click on any overdrive/distortion/fuzz pedal (and I've tried a bunch, more than mentioned above because I'm mainly a guitar player and have too much dirt

). Like most of you, I dig the sound of a cranked Ampeg; I'm just not hearing it with the VT Bass (too crunchy) or the SFT (too muffled and middy).
I'd like to try a clean blend pedal that has an effects loop and ability to set the wet/dry blend (or just setting the 'effected' level is fine).
Doing some searching, I see the Radial BigShot MIX Effects Loop Mixer and the Boss LS-2. I'm leaning towards the Boss because, well, Boss pedals are great and have a good form factor. Are there any others I should check out? Any advice for getting the most out of these types of setups? Any tips for getting a good dirt sound with my rig? Thanks!