True Snow?

[Nigel4less]

And not to confuse things, but supposedly, some folks have produced Mack supers by breeding Mack snows to Gem snows...???

Thats what I have heard as well from a couple of People. It would be interesting to find out if they breed true for being Homozygous for Gem and Mack, Gem , or just Mack.
I have also heard that TUG x Mack produces Supers.