That is a beautiful snake. But the dorsal saddles in the forward half of the body look longer front to back than I would expect in a snake with a pair of salmon mutant genes. Only a breeding test would tell what the genes are for sure. 
Am I detecting some confusion in the term "super salmon"? Seems to me that in this thread it has been used two ways -- for a snake with two salmon mutant genes however unattractive it looks and for really attractive snakes with either one or two salmon mutant genes.
For what it's worth, mating any two salmon boas (with a salmon mutant gene paired with a normal gene) can produce a boa with two salmon mutant genes. Selective breeding is required to go from a ho-hum group of snakes to some wow! snakes. And that is true whether the snakes involved have one or two salmon mutant genes.
Paul Hollander