this is one of the stories from seedinfer.eu, but who knows, it's one of those joe got a clone, and gave it to steve down the road, who know a guy up in the hills kind of story, lol.. but they do mention a land race kush in it, so yeah..
Clone Only Strains- Bubba Kush
Jerry bred his Chem Dog cut to a Humboldt county indica boy. This was the beginning of his cubing proccess. At BX3 he got a pheno that had all the smell, taste and kick of the Chem Dog, but in a pure indica pheno. Jerry gave this plant to Bob. It became known as the West Coast Dog. Bob bred this plant to my Old World Kush male. He took a male from that cross and bred it to the OG cut Putz had sent him. This is what made the original Bubba.