Hahahahahaha:main_laugh::main_laugh:.With great difficulty.
The only thing you can know for sure is a leo born with a strong yellow coloring that IS NOT a Talbino eclipse snow blizzard.How ever just coz there born not expressing a yellow that doesn't make them a talbino eclipse snow blizzard.As Talbino eclipse blizzards can be born with out expressing a yellow tone also.
So basically if born expressing a yellow tone it's a Talbino eclipse blizzard 100%.
If born not expressing a yellow tone it may be Talbino eclipse blizzard or Talbino eclipse snow blizzard so really you'll have to prove then out.
As far as I know you would have to test breed them to Normals and see if you get Snows het DB as a result. Some DBs have yellow overtones as a result of there RAPTOR x Blizzard lineage and some do not. The only way to be sure is through test breeding, not by sight, imo. I will be breeding a Mack Eclipse to a DB this coming season so we are in the same boat. The upside is we'll have a great combination morph regardless of what happens.
Maybe you should email Mr. DeMeyer as he produced them first...
I was just speaking with someone the other day about how awesome a SUPER DIABLO BLANCO would be! Could you imagine the intensity of the white on it?!?!? lol... but there'd be no way of knowing you had one until test breeding them all to see which were which...