Honestly im a bit confused. An RERS is a Red eyed reverse stripe right?, So that means it carries the eclipse gene? But instead of having all the RAPTOR genes, its just reverse stripe?
i'd use the most brightly colored of the 2, since you could get red eyes from either pairing, so if the Aptor is way more colorful than the RERS, I'd go that route...there are way more line/selective bred components to the (R)aptor morph than simple recessives...