I have found by experience that it is just a lot easier for most persons to understand that if the one parent is erythristic and the other parent is snow, the babies are hets for those traits, so that's what I use now. Using het erythristic snow isn't technically perfectly accurate, but I after tiring from explaining genetics to most of my potential customers and most do not care to understand anyway, I caved into using the more commonly used nomenclature. Surprisingly, most customers do not have self-granted honorary PhDs in genetics like Joe Peck and Tom Dickerson.