I really do. I feed a comprehensive nutrient package, amend my soil, and soil test fairly often. My pH is dead nuts accurate, and all nutrient levels are at desirable levels. These are lab results as well. Not some backyard, Amazon soil test kit (no offense to anyone who uses those). It definitely was not a nutrient issue. There isn't a nutrient that I don't account for. Even the micros. Potassium helped with keeping it in check big time, but I think the larger issue is prevention. How do we prevent this from happening in the future? Where does it come from? Is it soil born? Those are all questions I'd love to have concrete answers on. If it is indeed a TMV variant, all we can do is use caution when sourcing clones and seeds. I believe my issue was related to poor clones, and spread around through my laziness. I didn't sterilize equipment while pruning. With that being said, does it really matter if you sterilize when there are sucking insects? Viruses are the most frustrating thing to deal with because there is no cure. I had great success with light, weekly applications of a high quality K. All fertilizers are not created equal! Some may apply K and say it didn't work while others have great success. To me, that all leads back to nutrient formulation, which in the end, makes a huge difference.