http://www.worldofballpythons.com/morphs/lesser-mocha/
https://www.morphmarket.com/us/c/rep...-pythons/71181
there are allelic 100%, no doubts about it.
Given at least publicly the russo mocha hasn't been made. we have two options.
1. you had bad luck, you wouldn't be the first and won't be the last to have bad luck.
2. Theres a very slight chance the mocha russo isn't visual in the way we thought it would be. However given the patterns of every other BEL complex morph combo, I would very highly doubt it. If thats the case, some offpsring would make all russos and mochas (no normals).