This is incorrect. Fem seeds are no different than regular seeds. They are just female, not "feminized". Nothing is done to them to change them into females.
The colloidal silver sprayed on a female plant bonds to the copper molecules in he plant, and inhibits the production of ethylene, which is the hormone responsible for "telling" the plant to make calyxes/pistils instead of pollen sacs. Due to this, the plant only makes pollen sacs, BUT since it is a female (XX chromosomes), the pollen carries the X chromosome 100% of the time (female pollen). When used to pollinate a female flower, you ge the X from the pollen and the X from the ovum (egg cell), and you get a XX offspring (female).
A reason that fem seeds can seem like they tend to hermie, is due to people using poor breeding techniques, such as "Rodelization", which is leaving a plant to grow until it produces stamens/pollen sacs (a late hermie), and using it to pollinate another, and possibly itself. In this case, the hermie gene is passed on, and if the plant was selfed, it is as if BOTH parents were hermies.
Those are looking great! Can't wait for a smoke review on Berry Ryders and BKR's.