I wonder, if you could produce a "super" BEL? Is it possible to get a snake homozygous for BOTH Butter AND Mojave? Assuming that's even possible, I'm sure it wouldn't be too hard to prove out. If it continuosly produces only BELs then your golden. Problem is, choosing which solid white snake from the bunch to hold back and try to prove out. Same as the almighty "homo spider".