I have made these and grown them alongside half-sibling pure BG's. Parents were female BG and male RE which normally for us does not go easily. Reciprocal cross RE(female) x BG(male) goes much easier and males exceed 90% of brood surviving to point easily sexed. latter cross not setup for proper comparisons. Growth rate of hybrid very good even when controlling for sex once they get past the point where the green hybrid starts to slow down.
