If you breed two pastels, each egg has a 25% CHANCE of hatching out a super pastel. There is no guarantee that 25% of the clutch will be supers...some folks miss the odds entirely and don't hatch a single one...some folks get lucky and hatch a bunch.
If you breed two supers together, then all the babies will be supers. There is no "super-duper".How "nice" they are depends entirely on the genetics of the parents...nice pastels tend to make nice supers...and if both parents are exceptional examples of the morph, you have a very good chance of having exceptional babies.
EDIT for PS: Check out this link... http://www.ball-pythons.net/forums/s...ad.php?t=52847 ...it may help you understand the genetics a little more easily.![]()