I had EHX green russian reissue. I was ecstatic about its sound. Heavy, full, just pure awesomeness. But when I tried it in a mix there was no way I could make it stand out.
I thought the sovtek deluxe could do the job. Excellent sound sculpture options, and while sat comfortably in the mix the sound isn't the same as the green Russian reissue. There was no "balls" to the sound. Big let down and big pedalboard real estate.
A friend of mine had a Way huge russian pickle that didn't like for guitar. I borrowed it and instantly became what I was looking for. The sound was even better that the green reissue and sat very good in a mix with the tone knob alone. Somewhere red afterwards that is slightly less mid scooped than other russian clones, but I cannot possibly verify that.
The Cog i have heard it only through youtube and i must say, it is possibly the best of all but a used Russian pickle might be your best bet right now.
All of this tried with a precision into Boss BC1x, into Fuzz, into Bass driver DI.
Good luck!