With codom - simply put, a super is a homozygous gene pair - it got one motley gene from mother and one from father, it does not have the normal gene to dilute the motley gene like the heterozygous "non super" motley.
With simple recessive, the motley is recessive - so the heterozygous gene pair just looks normal - no visual indication. There is no super because you do not see anything until you have a homozygous gene pair.
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3.6 L. getula californiae - 16 eggs (Cal. King)
1.1 L. getula nigrita (MBK)
1.0 Pantherophis guttatus guttatus (Corn)
0.1 Pituophis catenifer catenifer (Pacific gopher)
3.3 Elgaria multicarinata multicarinata - 14 eggs (Cal. Alligator Lizard)