Having both male parts and female parts makes a plant a hermaphrodite. With cannabis it can be caused by genetics, stress, or both. In your case it sounds as if you're stressing the plant.
Have you grown any of theses seeds that you've produced using pollen from these hermaphrodite plants? And if so were the results 100% feminized seeds growing only female plants? When using chemicals to reverse a plant you inhibit the production of ethylene and the plant develops male flowers that produce pollen that does not contain the male "X" chromosome only "Y" chromosomes. The lack of any "X" chromosome means that when you pollinate a female with that pollen the resulting seeds will contain only "Y" chromosomes leading to seeds that will produce female plants aka feminized seeds.
If you're stressing a plant so that it develops into a hermaphrodite you have not eliminated the "X" chromosome and the seeds produced from using that pollen can be male, female, or more hermaphrodites.
When I reverse a plant with STS I end up with plants that grow entirely male flowers without any trace of female flowers. And pollen that when used to pollinate a female plant will produce feminized seeds.
Unless you've grown out a decent sample size of seeds created using pollen from a plant you stressed into turning hermaphrodite you can't assume that you have found a different method for producing feminized pollen. You have done nothing to inhibit the "X" chromosome so you will have pollen that is not feminized.
Female plants reversed using STS. Nothing but male flower parts that produce pollen lacking in the "X" chromosome.