Hi,
Actually wouldn't it be supers and cinamons?
All the offspring would be cinamons because of the super and each one also stands a 50% chance of being a black pastel which would make it a super.
So no black pastels could come from the clutch at all.
Better breed the lil guy to something else as well - black pastel females would let you shoot for the even darker supers in the future after all.
dr del