For what its worth, Kyle Kushman was a guest on Danny Danko's High Times radio program and he specifically tells the details of how he made the strain. Unfortunately, I forget which episode number it was, but it was one of the earlier ones, and all the episodes are up on the HT website for free download. If I remember right, the part about him getting a cut from a guy in Vermont who grew it in a Strawberry field is true, as is the part about him thinking the strain was worthless until he actually tried it. The VT strawberry was crossed with a haze or haze-hybrid to create the clone only line. I don't know if "the cough" (clone only strain thought to be Haze x NL#5) was the haze parent, but it might be. Anyway, if anyone really needs to know, Kushman has a website "medicalmarijuana.com" and he does post there and take questions, so if he hasn't already posted about this, you could probably ask him directly.