As a guitar player that favors clean to slightly gritty tones, I've got a bunch of mild OD pedals. Now that I'm playing bass a bit more, I'm looking for some pedals better suited for the bass that can get me heavier dist and fuzz tones. Also trying to build up some synth sounds...so far I've got an Octron3, Mutron, EHX Micro Synth, a collection of delays, reverb, phase and trem. And some low gain Ods. What should I be looking at for heavier sounds? I'm thinking about a Rat or Wooly Mammoth. Is there something better that can get me a wider variety?