I have a ProCo Rat clone (is the Little Bear version, with vintage, dirty and turbo switch). On guitar is amazing but on bass it sucks a lot of low end and when I use it in a pedalboard with my Green Big Muff the difference of low end is huge. My question is: Why I see it in a lot of bassist's pedalboards? How people use it? Why in my pedalboard it doesn't work so good?