Of course, some of the dinkers I see for sale barely are any different than a regular normal. The trait for sure might be genetic, but there are a lot of things that are genetic that aren't necessarily morphs, or if they are they are so subtle we tend to not really play with them. Now it seems anything genetic gets a name and a spot on world of ball pythons!
Don't get me wrong, I love dinkers and a lot of the subtle morphs do weird things to other morphs which is cool. But some of them..I dunno. I haven't seen the pairing that really makes me go "wow!" They just look like normals. Really good looking normals! And when bred to a morph they look like they had parents with good genetics, but not necessarily a combo gene. But maybe they haven't found that one gene that freaks out when mixed with them..