So how to tell the difference, Sour diesel from soma or soma breeds will be a limey sorta green where as the original was a darker almost blueish hue. This darker hue is quite evident in the strains from Rezdawg. The original smells like a diesel fuel spill at a gas station when broken up where as the Soma strain has a fruity graipfuitish smell.
note: this is not a knock on Soma, he did invent or at least main stream the supercropping technique. However he did cause a lot of confusion that is still considered a low blow and betrayel to the original by most "elder" to the growing community. Name steeling such as unlicensed use of DJ Shorts Blueberry has caused quite a bit of fuss in the multimillion dollor seed buisiness.