Despite what its name suggests, the het leucistic Russo morph is a co-dominant one. The homozygous form being a white snake with blue eyes (BEL) called “White Diamond”.
Statistically speaking, when bred to a normal, het Russo will give you 50% het Russo, 50% normals.
When they are babies, het Russo seems like a normal but with a very yellow color.
The het Russo moprh has already produced some surprises when combined with other morphs and it is probably still subject to others because it is still not developped a lot yet.