Reanimation MT-2 is good You'll like the tonal change considering that you have played your MT-2 and realised the fizziness of it.
And the good news is? Reanimation mod is still reversible with a toggle switch. Don't like it? NO PROBLEM, switch back to the fizzy goodness of the stock MT-2.
Big Muff cannot get metal tones at all, it's nice for shoegazing though