Pollinating females with male pollen of the same strain(backcrossing)

Firstly, early sexed males do not have hermaphrodite genes, males generally show their sex earlier than females. It is the females that develop male flowers that are then hermaphrodites and it is very rare for males to develop female flowers.......in fact in close to 40 years of growing, I have only seen it once. Seed making is simple, but pollination of females needs to be done very early in the flowering cycle as seeds take 4-5 weeks to grow and mature properly. Isolating males away from your pure females and collecting pollen for later hand application prevents random mass pollination. Pollen can be mixed with corn flour (20% pollen and 80% flour) to "dilute" it if pollen supply is limited. Application of pollen to fresh, plump, white pistils with a small paintbrush works best in my experience and don't use Q-tips, as the pollen sticks to them. Fertilization of the seeds takes about 30 minutes after the pollen is applied...........I usually wait an hour though, then spritz the fertilized buds with plain water to kill any excess pollen and prevent unwanted fertilization of too many flowers through air borne dispersal. Fertilizing only a few young, ripe, female flowers can result in 100s of seeds, so there is no need to go over board pollinating dozens of flowers.