Combining the Violet Menance with the Civil Unrest, you get the best of the best of the Russian-era Big Muffs in one package. Both circuits feature a Mids Control which is critical for making your sound more prominent in a band mix.  The Ram's head is a classic muff circuit associated with players like D. Gilmour and J. Mascis with a more prominent midrange bite, while the Civil War/Unrest is a more focused tone with some overlap with the Op-Amp Big Muff.