Breeding or making my own feminized Auto's.

I am about to start some Afghan Kush ryder by world of seeds. I am interested in using some colloidal silver to stress one of plants into creating pollen. and then pollinating another feminized AK. Am i correct in thinking that.

Fem AK Auto #1 (stressed with colloidal silver) + Fem AK Auto #2 = Fem AK Auto Seeds.

How stable is this cross? and can i expect to get similar results from them as their parents? how will this turn out if i continue this process over many generations?

You wont see the same pheno in all of them but you will however get better results when you do a large scale male + female you will only get a higher risk of hermie the further you go with the silver on fem method...

So, how would a genetic line that has no hermie traits suddenly get them from colloidal silver. Using colloidal silver only supresses the female hormone preventing the female bud from forming. In it's place the already present and dormant male hormones are allowed to flourish and create pollen sacs.

You would have to have mutated the plants DNA to see that trait. Thoughts?

No one will know how stable the cross is, or what genes will be dominant ... that's what you will find out

Only thing guaranteed is that the seeds will be feminised, and hopefully autoflowering.

You won't know stability till you grow it and grow a lot of it. Thats why when new strains are made by reputable banks like Dj.Short and TGA-Subcool they have people test the strain for a few months before it hits the market. This way they know the quality of the product (i.e. taste, smell, looks, potency), the range of phenotypes, mutations, growth quality/resistances, and over all yields.