I started a 961 Daletas seed in order to do a great orange cross with the 801.5 Stelts. However, the 961 turned out to be flat before it was transplanted to the patch. So, I will neither use it as a pollinator nor as a seed producer. It was killed this evening. I will never use any plants that show signs of flat or double vining for any of my crosses. I am sure that the trait for flat/double vining can be found in the plant's genes. It may take some environmental factors to express it though. I would never take any chances when it comes to producing high quality seeds that other growers might want to grow. Luckily, none of my plants in my main patch show any signs of flat or double vines this year.