"We also found that after all that trouble of removing males, we sometimes ended up with females that switched sexes when they were stressed, resulting in accidental cross breeding – female plants were pollinated by females that developed male sex organs (hermaphrodites). We decided to grow out those seeds and, to our joy, we discovered that the ratio of females to males was skewed to a greater number of females. This was our discovery of hermaphroditic breeding." Its not 99%, just a high ratio of females, and i have heard that you can get a lot of hermaphrodite seeds from hermies.