Just wanted to throw a little more info your way so here goes.
First off, yes most pastel lines seem to be compatible, but only if they are true pastels! I say this only because there are two morphs that are out there so far using the word "pastel" within the name, one is the "Cinnamon Pastel" and the other is the "Enchi Pastel". So far it has been proven through breeding trials that the "Cinnamon Pastel" trait and the "Pastel" trait do not share the same loci, and therefore are not like mutations. This was proven out by crossing the two lines, to produce "Pewters" which were then bred back to a normal to produce "Cinnamon Pastels" and regular "Pastels" which proves that the Pewter was not a homozygous animal(has 2 of same gene at same location). As far as I know the Enchi's haven't been crossed yet with the "Pastel" lines yet, but I'm almost positive that it will prove to be a different mutation.
Well hope that helps, and if I need to clarify let me know and I'll try to make it more clear.
-Dan
Are the Nerd line lemons compatable with the granitelli (spelling) line? If so would two lemons still produce supers, even if from the different lines?
Thanks in advance!