It would be much easier to evaluate your particular snake (based on pics) than to explain what defines a Chocolate. They are VERY variable. One line can look completely different from another. But no matter what, breeding it will be the only way to find out for sure. I'm trying to do the same thing with my dinker female, HOPING she turns out to be a Chocolate, cause I really like them. But even if she doesn't, I have a male Chocolate Pin, so at least I do have the gene in my collection already. Post pics!