It seems the root of the problem is that the Mystic and Mojave are so hard to tell apart to begin with. What about a pure gene BEL like Super Special vice a Mystic x Lesser? Can a Mystic x Russo be distinguished from a Mojave x Russo?

Maybe I'll just go with a Super Mystic and produce more of the same and some Potions.

What if I went completely outside of the BEL complex? What else goes well with Mystic or Mojave genes?